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13 MEMORY TONE / PULSE DIALER WITH REDIAL SAVE HANDFREE & HOLD FUNCTION

DIP-18

Silan Semiconductors
13 MEMORY TONE / PULSE DIALER WITH REDIAL SAVE HANDFREE & HOLD FUNCTION
DESCRIPTION
The SC91650A / B, SC91651A / B, SC91652A / B are 13-memory Tone / Pulse switchable dialer with Last Number Redial(LNB) and HOLD function, which are fabricated in COMS technology with wide operating voltage for both tone and pulse mode, and consumes very low memory retention current in ON-HOOK state.
DIP-18
FEATURES
13-memory Tone / Puls e switchable dialer Three 16-digit one touch memory and ten 16-digit two touch memory One 32-digit last number redial memory One 32-digit SAVE function for storing phone number in off hook status Note: only 15-digit / 31-digit for Tone mode, 1-digit use to identify tone mode Pulse-to-tone (PT) is provided for PBX operation Flash key is available Minimum tone duration is 100ms for SC91650, SC91651 or 91ms for SC91652 Minimum intertone pause is 106ms for SC91650, SC91651 or 91ms for SC91652 Uses 3.579545MHz crystal or ceramic resonator Many options can be selected Mode (10PPS 20PPS Tone) M / B ratio (40:60 33:66) Pause time (3.6s 2.0s) Pulse number (n n+1 10-n) Flash function (RESET digit) (PT) pause time (3.6s 1.0s) Flash time (80ms 93ms 100ms 200ms 300ms 600ms) Flash pause time (200ms 1000ms) Redial pause time (1ms) Mixed dialing and cascade dialing is provided Handfree function is provided for speaker phone application Power on reset circuit is provided Hold function is provided Keytone is provided Packaged in 18-DIP or 22-DIP
DIP-22
ORDERING INFORMATION
SC91650A SC91650B SC91651A SC91651B SC91652A SC91652B DIP-18 Package DIP-22 Package DIP-18 Package DIP-22 Package DIP-18 Package DIP-22 Package
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PIN CONFIGURATIONS
HDI 1 2 3 4 5 6 7 8 9 10 11 SC91650 / 1B SC91652B 22 HDO 21 R4 20 R3 19 R2 18 R1 17 MODE 16 TONE 15 PO 14 HKS 13 VDD 12 HFO 18 R4 17 R3 16 R2 C1 C2 C3 C4 C5 OSCI OSCO XMUTE VSS HFI
C1 C2 C3 C4 C5 OSCI OSCO XMUTE VSS
15 R1 14 MODE 13 TONE 12 PO 11 HKS 10 VDD
PMUTE C1 C2 C3 C4 C5 OSCI OSCO XMUTE VSS 1 2 3 4 5 6 7 8 9 SC91652A 18 R4 17 R3 16 R2 15 R1 14 MODE 13 TONE 12 PO 11 HKS 10 VDD C1 C2 C3 C4 C5 OSCI OSCO XMUTE VSS HFI
22 KT 21 R4 20 R3 19 R2 18 R1 17 MODE 16 TONE 15 PO 14 HKS 13 VDD 12 HFO
SELECTION GUIDE
HDI SC91650A SC91650B SC91651A SC91651B SC91652A SC91652B N N N N N N HFI N PO Inverter Inverter Open drain Open drain Open drain Open drain PMUTE N N N N N Y KT N N N N N Y Tone Duration 100mS 100mS 100mS 100mS 91mS 91mS
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BLOCK DIAGRAM
XMUTE
HDO HFO VDD PULSE GENERATOR SAVE MEMORY KERNEL CONTROL CKT. DECODER & DATA LATCH LNB MEMORY ROW / COLUMN PROGRAMMING COUNTER MEMORY D / A CONVERTER INPUT INTERFACE CKT. TONE KT
COL1 COL2 COL3 COL4 COL5 OSCI OSC. OSCO DIVIDER COLUMN INTERFACE CKT. INPUT INTERFACE CKT. PO
ROW1 ROW2 ROW3 ROW4
ROW INTERFACE CKT. VDD
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KEYBOARD ASSIGNMENT
EM1 EM2 EM3 ST
2) SAVE: SAVE key. 3) F: Flash key 4) RD / P: Redial key / Pause key 5) ST: Store key 6) EMn: One touch memory key 7) A: Auto key for two touch memory
1) / T: In pulse mode, execute PT function In TONE mode, execute key
DIALING SIGNAL OPTION
The resistor connection between selected Row (or Column) and Vss may select most country telecom specifications (refer to Row and Column pin description). Those options include M / B ratio, Flash time, pause time ... , as follows. a): Make / Break ratio:
d): Flash time:
Row3 Row4
Flash time (ms) 600 300 93 200 100 80
b): Pause time & PT wait time:
R for SC91652 only
tp(sec) 3.6 2.0
tpT(sec) 3.6 1.0
e): Dialing out Pulse number:
Column3 Column4
Pulse number n n+1 10-n reserved
c): Flash Key function:
Column1
NR tFP(sec) 0.2 / 0 1.0 NR R R
Flash key Reset Digit
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4). The following list is the corresponding pulse (break) numbers that are sent out by pressed the number keys. Digit key 1 2 3 4 5 6 7 8 9 0 # Normal (n) 1 2 3 4 5 6 7 8 9 10 PT KEY ignored New Zealand (10-n) 9 8 7 6 5 4 3 2 1 10 PT KEY ignored Dialing signal option Sweden / Denmark (n+1) 2 3 4 5 6 7 8 9 10 1 PT KEY ignored
ABSOLUTE MAXIMUM RATINGS
Characteristic
Power Supply Voltage Input Voltage Power Dissipation Operating Temperature Storage Temperature
Symbol
VDD VIN PD Topr Tstg
Value
6.0 -0.3~VDD+0.3 500 -25~+70 -55~+150
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ELECTRICAL CHARACTERISTICS
Conditions
Parameter
DC Characteristics
Symbol
Operating Voltage
Pulse Memory retention Tone OFF-HOOK, Keypad entry with pull down Pulse resistance OFF-HOOK, Keypad entry No
Operating Current
20 -VSS 0.7VDD -0.2 -2 200 -0.2 0.2 -0.2 0.2 0.2 0.2 ----10 400 20 200 -200 --10 20 40:60 33:66 0.1 0.1
80 1.0 1.0 0.3VDD VDD 1 -0.1 50
Standby Current Memory Retention Current Control Pin Input Low Voltage Control Pin Input High Voltage
IS Imr Vil Vih Imth Imtl Ihks Ikbd Ikbs tDB Rhfi Ihdoh Ihdol Rhdi Ihdoh Ihdol Ipoh Ipol fpr tM tB
XMUTE Pin Leakage Current
XMUTE Pin Sink Current
HKS Pin Input Current Keyboard Scanning Pin Drive Current Sink Current
Key-in Debounce Time HFI pin input resistor HFO pin drive current HFO pin sink current
HDI pin pull high resistor
HDO pin drive current HDO pin sink current Pulse Mode Pulse Output Pin Leakage Current Pulse Output Pin Sink Current Pulse Rate Make / Break Ratio
(to be continued)
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(continued)
Conditions
Parameter
Pre-digit Pause Inter-digit Pause Tone Mode DC Level Tone Output Pin Sink Current AC level Load Resistor DTMF Signal Pre-emphasis Distortion Minimum tone duration Time (note 3) Minimum Intertone Pause Time (note 3)
Symbol
tPDP tIDP
--0.5VDD 0.2 130 5 1 ---
--0.7VDD -180 -3 -23 ---
Vdc Itl Vdtmf RI twist Dist. tTD tITP
V mA mVrms K dB dB ms ms ms ms
Keyboard Scanning Pin
Standard(Hz)
Output
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PIN DESCRIPTION
Pin No. 650A / B 651A / B 652A / B
Description
Provides keyboard scanning.
Pin Name
a. Dialling option: The resistor connection between selected Row (or Column) and Vss may select most countries telecom specification.
b. Keyboard scanning:
While HKS pin is HIGH, Both column pin and row pin are in floating state. While HKS pin is LOW, the column group stays in "HIGH" state and row group stays in "LOW" state.
The keypad is compatible with the standard dual contact matrix keyboard (as figure1b), the inexpensive single contact keyboard (as figure 1a), and electronic input (as figur e 1c).
Column
Row Column
Figure1a: Single contact form keyboard configuration Row
Figure1b: Dual contact form keyboard configuration VDD VSS
Column
VDD VSS
Figure1c: Electronic signal input keyboard configuration
(to be continued)
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(continued)
Description
Oscillator input & output pins.
Pin No. 650A / B 651A / B 652A / B
Pin Name
The 3.579545MHz oscillator is formed by a built-in inverter inside of this chip and by connecting a 3.579545MHz crystal or a ceramic resonator across the OSCI and OSCO pins. (built-in feedback resistor and capacitor)
When HKS is "LOW", a valid key-in may turn on this oscillator and generates a 3.579545 MHz clock. Mute output pins. NMOS open drain output structure. The output is in "LOW" state during dialing sequence (both Pulse and Tone mode) and in Hold status otherwise this pin is "high-impedance". Long (continue) Mute.
XMUTE
VSS VDD
Negative power supply pin. Positive power supply pin. Hook switch input pin. When the handset is in ON-HOOK state, this pin must be pulled "high" in order to disable the dialing operation and decrease the power consumption. When in OFF-HOOK state, th e HKS pin must be pulled "low" state for all function operation. Pulse output signal pin. Inverter output structure (SC91650).
The output is "LOW" during pulse dialing and Flash operation, otherwise this output is "high". NMOS open drain output structure. Dual Tone Multi-frequency output pin. In TONE mode, when an entry of digit key (include , # key), this pin will send out a corresponding DTMF signal.
The TONE pin provides minimum tone duration (tTD) and minimum intertone pause time to support rapid key-in. If key-in time is less than tTD (100ms), DTMF signal will last for tTD (100ms) otherwise the tone duration will last as long as the key is pressed. Mode select pin.
Tri-state input structure. This pin can select following three modes. (to be continued)
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(continued)
Description
Pin No. 650A / B 651A / B 652A / B
Pin Name
PMUTE
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KEYBOARD OPERATION
Symbol definitions:
a) b) c) d) e) f) g) h) i) j) k) l) m) n) D1~Dn Dp1~Dpn Dt1~Dtn tF tP tPT tFP tRP LNB M1 .. Mm : : : : : : : : : : : : : :
OFF-HOOK or enable Hand Free function. ON-HOOK or disable Hand Free function. Input level from low to high. Input level from high to low. Digit key 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, , #, (C1~Cn is same as D1~Dn). Pulse digit Tone digit Flash time. Pause time. Pulse to Tone wait time. Pause time for flash. Pause time for redial. Last number redial buffer. Memory location 1, 2, 3, 4, 5, 6, 7, 8, 9, 0. 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, (Cp1~Cpn is same as Dp1~Dpn). 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, , #, (Ct1~Ctn is same as Dt1~Dtn).
A Normal Dialing
1. Digit Dialing Procedure Dial out Dial out LNB 2. Dialing with flash key Procedure Dial out Dial out LNB LNB : t F, t F, D1, F, D1, D2.., Dn tFP, tFP, Dt1, Dp1, Dtn (in Tone mode) .., Dpn (in Pulse mode) D1, D2.., Dn Dtn (in Tone mode)
Dt1, Dp1, D1,
Dt2..,
Dp2, .., Dpn (in Pulse mode) D2.., Dn
Dt2.., Dp2,
D2..,
Dn (reset function only)
Un change (Digit Function only)
3. Dialing with PT key Procedure Dial out LNB D1, D1, D2 .., PT , .., Dn
Dp2, .., D2 ..,
tPT, .., Dpn (in Pulse mode) Dn
Note: If key in digit over maximum digit stored in LNB, then RD is inhibit even after on / off hook.
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B Mixed dialing
, D9, D10 .., Dn Dtn Dn or PT , D9, D10 .., tPT, Dt9, Dt10.., Dn
C Redial
LNB Procedure Dial out Dial out D1, tRP, tRP, D2.., RD Dt2.., Dp2, .., Dtn (In Tone mode) (in Pulse mode) Dpn Dn
Dt1, Dp1,
Note: If key in digit over maximum digit stored in LNB, then RD is inhibit.
D Pause Function
Procedure Dial out Dial out LNB D1, D2.., Dn, P, C1 .., Dtn, tP, Ct1, Cn Ctn (in Tone mode) Cpn (in Pulse mode)
Dt1, Dp1,
Dp2, .. Dpn , tP, Cp1 ..,
D1, D2.., Dn, P , C1, C2 .., Cn
E Flash Function 1. Reset
Procedure Dial out Dial out LNB D1, D2.., Dn, F, C1 .., Cn (in Tone mode) (in Pulse mode) Dt1, Dp1, C1, Dt2, .., Dtn , t F, Dp2, .., Dpn , C2 .., Cn tFP, t F, Ct1 .., Ctn
tFP, Cp1 .., Cpn
2 Digit
Procedure Dial out Dial out LNB D1, D2.., Dn, F, C1 .., Cn (in Tone mode) (in Pulse mode) Dt1, Dp1, D1, Dt2, .., Dtn , t F, Dp2, .., Dpn , D2 .., Dn tFP, t F, Ct1 .., Ctn
tFP, Cp1 .., Cpn
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F One Touch Memory Function 1. Store Memory
Nothing
D2..., F, ... Dn,
Nothing D2, ..., F, ...Dn D1, ST, D1, D2..., P, ... Dn, ST, EMn
Nothing D2, ..., P, ...Dn D1, ST, D1, D2..., PT, ... Dn, ST, EMn
Nothing D2, ..., PT, ...Dn
2 Quickly Store
3 Redial
Dt1, Dp1, D1,
Dt2, ... Dtn (in tone mode) Dp2, ... Dpn (in pulse mode) D2, ...Dn
G Two Touch Memory Function 1. Store Memory
Nothing D2, ..., F, ...Dn D1, ST, D1, D2..., P, ... Dn, ST, EMn
Nothing D2, ..., P, ...Dn
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D2..., PT, ... Dn, ST, EMn
2 Quickly Store
3 Redial
Dt1, Dp1, D1,
Dt2, ... Dtn (in tone mode ) Dp2, ... Dpn (in pulse mode) D2, ...Dn
H Save Function 1. The Second Redial Memory
Procedure Dial out Dial out LNB : D1, Dt1, Dp1, D1, D2 , ... Dn, dialing end, SAVE Dt2 , ... Dtn (in tone mode) Dp2, D2, ... Dpn (in pulse mode)
... Dn
2 Store Phone Number In Conversation
Procedure Dial out Dial out SAVE LNB : : : ST, D1, D2, ... Dn, conversation, ST, C1, C2, ... Dt1, Dp1, C1, C1, Dt2 , ... Dtn (in tone mode) Dp2, C2, C2, ... Dpn (in pulse mode) Cn, ST, SAVE
... Cn ... Cn
Note: If key in digit over maximum digit stored in SAVE, then SAVE is ignore. The data in SAVE is no change, and can dial out after on / off hook.
3 Redial
SAVE Procedure Dial out Dial out LNB LNB : : D1, D2, SAVE ... Dn
Dt1, Dp1, D1,
Dt2, ... Dtn (in tone mode ) Dp2, ... Dpn (in pulse mode) D2, ...Dn(SC91652 only)
Un change (SC91650, SC91651)
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I Cascade Dialing 1. Normal Dialing and Memory
Procedure
D1, D2, ... Dn, EM1, EMm .. EMn, A, Mn
2. One Touch Memory and Memory
Procedure EMm ... Emn, A, Mn
3. LNB and Memory
Procedure RD, EM1, EMm ... EMn, A, Mn
4. SAVE and Memory for SC91652 only
Procedure SAVE, EM1, EMm ... EMn, A, Mn
Handfree Function operation:
Hold Line Function Operation:
Operating flow chart of Handfree
HD ON HKS (0) INITIAL HF ON HKS (1) HF LINE HF HD HD OFF ON HKS (5) HF LINE HF OFF OFF ON OFF HKS (2) LINE HF ON HF OFF HKS (3) HF LINE HD HF HD OFF HKS (4) LINE HD
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STATE NO. (0) INITIAL STATE (1) ON HKS HF LINE (2) OFF HKS LINE (3) OFF HKS HF LINE (3) OFF HKS HD LINE (3) ON HKS HD LINE
PO XMUTE
HFO 0 1 0 1 0 0 HDO 0 0 0 0 1 1 ON / OFF: ON / OFF HKS HF: Depress HF key HD: Depress HF key F: Floating (Hi-impedance)
PO is floating for SC91651 /
SC91652 struc-ture.
drain
TEST CIRCUIT
Operation current
Standby current
keyboard
MODE VSS
3 Tone output voltage
4 counter and AC meter
Tone distortion
keyboard
Spectrum analyzer
TONE HKS
keyboard
10K VSS
Pulse output sink current (open drain structure)
Pulse output sink current (inverter structure)
Flash key
PO HKS
HKS PO VSS
7 Keypad input current (row group)
8 keypad input current (column group)
VDD COLUMN
HKS VSS MODE
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a. V1..Vn are extraneous frequencies (ie, inter modulation and harmonic), components in the 500Hz to 3400Hz band. b. VL, VH are the individual frequency components of DTMF signal.
TIMING DIAGRAMS
HKS 3 KEY IN
XMUTE PO TONE
tTD tITP tITP tITP
OSCO Normal dialing Tone Mode Timming Diagram ...High impedance
HKS 3 KEY IN PMUTE
XMUTE
tPDP tB tTD tIDP tM
PO TONE OSCO
Normal dialing Pusle Mode Timming Diagram
...High impedance
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TIMING DIAGRAMS (continued)
HKS 3 KEY IN
XMUTE
PO TONE OSCO ...High impedance Timming Waveform for mixed dialing Operation (by / T key entry) for SC91650, SC91651
tIDP tIDP tPT tITP
HKS 3 KEY IN
MODE XMUTE
PO TONE OSCO ...High impedance Timming Waveform for mixed dialing Operation (by mode selection pin switches) for SC91650, SC91651
tIDP tIDP tPT tITP
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TIMING DIAGRAMS (continued)
HKS 3 KEY IN
XMUTE
PO DTMF OSCO ...High impedance Timming Waveform for mixed dialing Operation (by / T key entry) for SC91652 only
tIDP tIDP tPT tITP
HKS KEY IN
XMUTE PO TONE OSCO ...High impedance Flash key operating timming
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TIMING DIAGRAMS (continued)
HKS 3 KEY IN
MODE XMUTE
PO DTMF OSCO ...High impedance Timming Waveform for mixed dialing Operation (by mode selection pin switches) for SC91652 only
tIDP tIDP tPT tITP
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TIMING DIAGRAMS (continued)
HKS 1 KEY IN
XMUTE PO
tITP tITP
tITP tD
TONE OSCO
AUTO DIALING Tone Mode Redial Timming Diagram ...High impedance
HKS 3 KEY IN
XMUTE
tRP tIDP tIDP
tIDP tIDP
TONE OSCO
...High impedance Pulse Mode Redial Timming Diagram
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TIMING DIAGRAMS (continued)
HKS KEY IN
PULSE MODE
XMUTE PO TONE OSCO
TONE MODE
XMUTE PO
tITP tITP tP tITP
TONE OSCO ...High impendance Pause key operating timming (for SC91650, SC91651)
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TIMING DIAGRAMS (continued)
HKS KEY IN
PULSE MODE
XMUTE PO DTMF OSCO
TONE MODE
XMUTE PO
tITP tITP tP tITP
DTMF OUT OSCO ...High impendance Pause key operating timming(for SC91652 only)
HKS F KEY IN
XMUTE PO
TF TFP
TONE OSCO
...High impedance Flash key operation timing
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1N4004x4 22M
ON HOOK
100k A92
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OFF HOOK
240k 3.3k A42 47k
2.2k IN4148 0.1µF
220k IN4148 2SC945
Ring ZNR 120V
470k 100µF 16V ZD 5.1V
1µF 16V
100k 2SC945
SA EM1
HKS TONE 13
0.2µF 1.5k
TYPACAL APPLICATION CIRCUIT(for SC91650A)
REV: 1.0
XMUTE 8
VDD 10pps 3.579545MHz 20pps TONE 0.01µF
SC91650A
SPEECH NETWORK
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MODE SW
820k x7
1N4004x4 100k MPSA92 4.7k 200k 0.1µF 3 2 100k 1µF 47µF 3.3k 2.7V 47k C945 HF KEY 1.2k 1µF 4.7k 1 H66T C945 470k 100µF 16V 1µF IN4148 Tip
ON HOOK
Ring ZNR 120V
IN4148 C945 5.1V 0.2µF 200
14 HKS 15 PO
13 16 VDD TONE OSCI 7
3.579545MHz
OSCO 8 11 HFI
XMUTE 9
TYPACAL APPLICATION CIRCUIT (for SC91650B)
HFO 12 22 HDO VDD
470k C945 10µF 50V 220k 22k 100k HD KEY 1µF C945 1µF
2 to 4 wire speech network & audio amplifier
REV: 1.0
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TO HANDSET
SC91650B R1 18 1 HDI R2 19 R3 20 R4 21 C1 2 MODE VSS C5 C4 C3 C2 10 6 5 4 3 17
VDD MODE SW 10pps 20pps TONE 0.01µF
SA EM1
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820k x7
1N4004x4 22M
HOOK SW ON
100k MPSA92 IN4148
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40k Ring ZNR 120V MPSA42 100k 2.2k
2.7k IN4148x2 2SC945 220k 100µF 16V ZD 5.1V
1µF 16V 0.1µF
10 15 R1 16 R2 17 R3 18 R4 PO VDD
11 HKS
TYPACAL APPLICATION CIRCUIT (for SC91651A)
TONE 13
SC91651A
XMUTE 8
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10pps 20pps 3.579545MHz TONE
MODE SW 820k x7 R 0.01µF
2 wire to 4 wire speech netwok
REV: 1.0
330k 100µF 16V
1N4004x4 100k MPSA92 330k 4.7k 200k 0.1µF 3 2 100k 1µF 47µF 3.3k 2.7V 47k C945 100k HF KEY 1.2k 1µF 4.7k 1 H66T C945 470k 100µF 16V 1µF IN4148 Tip
ON HOOK
Ring ZNR 120V
IN4148 C945 5.1V 0.2µF 200
14 HKS 15 PO
13 16 VDD TONE OSCI 7
3.579545MHz
OSCO 8 11 HFI
XMUTE 9
TYPACAL APPLICATION CIRCUIT (for SC91651B)
22 HDO VDD
470k C945 10µF 50V HD KEY 1µF
SC91651B R1 18 1 HDI
TO HANDSET
SA EM1
1µF C945 22k 100k
VDD MODE SW 10pps 20pps
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820k x7 0.01µF
HFO 12
2 to 4 wire speech network & audio amplifier
REV: 1.0
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240k 47k
1N4004x4 Tip MPSA92 IN4148 240k Ring ZNR 120V MPSA42 100k 2.2k
OFF HOOK SW ON
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2.7k IN4148x2 2SC945 330k 100µF 16V 100µF 16V ZD 5.1V 220k 1µF 16V 0.1µF 100k 470k
10 15 R1 16 R2 17 R3 18 R4 PO VDD
11 HKS
TYPACAL APPLICATION CIRCUIT (for SC91652A)
TONE 13
SC91652A
XMUTE 8
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10pps MODE 20pps SW 3.579545MHz TONE 820k x7 R 0.01µF
2 wire to 4 wire speech netwok
REV: 1.0
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TYPACAL APPLICATION CIRCUIT (for SC91652B)
1N4004x4 Tip
ON HOOK
22M IN4148
100k MPSA92 330k 240k
200k C945 470k 100µF 16V 1µF 5.1V
2.2k IN4148 C945
ZNR 120V
0.2µF
3.3k 47k C945 100k MODE SW 47k HF KEY HFO 1µF 3.579545MHz VDD 10pps 20pps TONE 0.01µF
14 HKS 15 PO 11 HFI
13 16 VDD TONE PMUTE 1 KT 22
XMUTE 9
2 to 4 wire speech network & audio amplifier
HFO 12 SC91652B 7 OSCI R1 18 R2 19 8 OSCO R3 20 17 MODE VSS C5 C4 C3 10 6 5 4 R4 21 C1 2 C2 3
TO HANDSET
SA EM1 F EM2
820k x7
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO., LTD
REV: 1.0 2001.01.15
Silan Semiconductors
PACKAGE OUTLINE
UNIT:mm
DIP-18-300-2.54
15 degree
DIP-22-400-2.54
UNIT: mm
15 degree
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO., LTD
REV: 1.0 2001.01.15