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code lock circuit

Catalog Datasheet MFG & Type PDF Document Tags
Abstract: KEYBOARD PROGRAMMABLE DIGITAL LOCK CIRCUIT FEATURES: • Stand alone lock logic • 38416, 4 , Primary code, when entered from the keypad, causes the LOCK/UNLOCK 1 output to toggle and the MOMENTARY , Y4 H ID PROGRAM FIGURE 1 2. The Secondary code, when entered from the keypad, causes the LOCK , are the same in all 4 digits, the entry of the code will cause both the LOCK/UNLOCK 1 and the , entering the Program mode. 3. The Duress code, when entered from the keypad, causes the LOCK/UNLOCK 1 ... OCR Scan
datasheet

4 pages,
224.2 Kb

number keypad 9 digit keypad CIRCUIT diagram Digital Keypad Combination lock Electronic Combination Lock Circuit 102 m x1 y1 KEYPAD SWITCH debounce LS7223 keypad decoder digital code lock system keypad scanning KEYPAD 4X3 details 4x3 keypad KEYPAD 4X3 SWITCH KEYPAD 4X3 TEXT
datasheet frame
Abstract: €¢ T W X : (510) 226-7833 Revised July 1989 KEYBOARD PROGRAMMABLE DIGITAL LOCK CIRCUIT CONNECTION DIAGRAM - TOP VIEW STANDARD 20 PIN PLASTIC DIP FEATURES: • Stand alone lock logic • 38416, 4 , MOM CAP-M FIGURE 1 2. The Secondary code, when entered from the keypad, causes the LOCK/UNLOCK , are the same in all 4 digits, the entry of the code will cause both the LOCK/UNLOCK 1 and the , ­ plied to the LS7223 LS7223, the circuit defaults to the Primary code corresponding to the keys X1 Y1, X1 Y2 ... OCR Scan
datasheet

4 pages,
208.09 Kb

LS7223 TEXT
datasheet frame
Abstract: below. 1. The Arm code, when entered from the keypad, causes the Lock output to latch low and the Arm , FIGURE 1 2. The Disarm code, when entered from the keypad, causes the Lock output to latch high and , disarming, the entry of the code will cause the Lock output to toggle. This means that if the output was , , the circuit defaults to the Disarm code corresponding to the keys X1 Y1, X1 Y2, X2 Y2, X1 Y1. The , every time the Arm code is entered, irrespective of whether the circuit is currently in the disarm ... LSI Computer Systems
Original
datasheet

4 pages,
37.51 Kb

KEYPAD 4 X 4 transistor code x1 LS7222-S KEYPAD 4 X 4 circuit A3800 input supply diagram to code lock LS7222 9 digit keypad CIRCUIT diagram electronic security code lock system Y2/x1 capacitor digital code lock system TEXT
datasheet frame
Abstract: €¢ Momentary and static lock control outputs • Internal key debounce circuit • Tamper detection output â , . the code will cause both the Lock 1 and the Lock 2 outputs to toggle. Whenever power is first applied , consists of a 4 digit 3. The Duress code, when entered from the keypad, causes the Lock 1 output to toggle , Lock 1 output to toggle and the Momentary output to applied to the LS7223 LS7223, the circuit defaults to the , LS7223 LS7223, the circuit defaults to the Primary code X1Y2, X2Y2, X1Y2. The code can then be altered ... LSI Computer Systems
Original
datasheet

4 pages,
31.26 Kb

LS7223 TEXT
datasheet frame
Abstract: €¢ Momentary and static lock control outputs • Internal key debounce circuit • Tamper detection output â , . the code will cause both the Lock 1 and the Lock 2 outputs to toggle. Whenever power is first applied , consists of a 4 digit 3. The Duress code, when entered from the keypad, causes the Lock 1 output to toggle , Lock 1 output to toggle and the Momentary output to applied to the LS7223 LS7223, the circuit defaults to the , LS7223 LS7223, the circuit defaults to the Primary code X1Y2, X2Y2, X1Y2. The code can then be altered ... LSI Computer Systems
Original
datasheet

4 pages,
29.22 Kb

LS7223 TEXT
datasheet frame
Abstract: Momentary and static lock control outputs · Internal key debounce circuit · Tamper detection output · , Programming 2. The Secondary code, when entered from the keypad, causes the Lock 2 output to toggle. The first , code will cause both the Lock 1 and the Lock 2 The monolithic, low power CMOS design of the LS7223 LS7223 , backed-up and to the LS7223 LS7223, the circuit defaults to the Secondary automotive type security systems. code , Duress code, when entered from the keypad, causes the Lock 1 output to toggle; at the same time the ... LSI Computer Systems
Original
datasheet

4 pages,
27.97 Kb

3 x 4 keypad A3800 anti-bounce anti-bounce circuit different types of electronic lock KEYPAD 4 X 4 source code LS7223 electronic security code lock system LS7223-S digital code lock system circuit diagram of keypad lock system 7 digit lock code TEXT
datasheet frame
Abstract: . 1. The Arm code, when entered from the keypad, causes the Lock output to latch low and the Arm , 2. The Disarm code, when entered from the keypad, causes the Lock output to latch high and the , entry of the code will cause the Lock output to toggle. This means that if the output was high , circuit defaults to the Disarm code corresponding to the keys X1Y1, X1Y2, X2Y2, X1Y1. The code can then , identical , this output will occur on every other code entry. 17 LOCK When the Disarm code or the ... LSI Computer Systems
Original
datasheet

4 pages,
30.88 Kb

x2Y1 capacitor code lock circuit CMOS different types of electronic lock keypad diode matrix KEYPAD SWITCH LS7222-S LSI LS7222 A3800 KEYPAD SWITCH debounce LS7222 Keypad matrix 12 key internal KEYPAD 4 X 4 X1Y2 digital code lock system TEXT
datasheet frame
Abstract: July 1989 KEYBOARD PROGRAMMABLE DIGITAL LOCK CIRCUIT FEATURES: • Stand alone lock logic • 38416 , programmable electronic lock implemented in a monolithic CMOS integrated circuit, packaged in a 20 pin DIP. The circuit contains all the necessary memory, decoder and control logic to make a programmable "keyless" lock , high. Whenever power is first applied to the LS7222 LS7222 the circuit defaults to the Arm code corresponding , the code will cause the LOCK/UNLOCK output to toggle. This means that if the output was high (unlocked ... OCR Scan
datasheet

4 pages,
233.09 Kb

program keypad 1S92 code lock circuit CMOS entering 102 m x1 y1 KEYPAD SWITCH debounce keypad decoder code lock circuit KEYPAD 4 X 4 source code LS7222 LSI LS7222 digital code lock system TEXT
datasheet frame
Abstract: below. 1. The Arm code, when entered from the keypad, causes the Lock output to latch low and the Arm , FIGURE 1 2. The Disarm code, when entered from the keypad, causes the Lock output to latch high and , disarming, the entry of the code will cause the Lock output to toggle. This means that if the output was , , the circuit defaults to the Disarm code corresponding to the keys X1 Y1, X1 Y2, X2 Y2, X1 Y1. The , every time the Arm code is entered, irrespective of whether the circuit is currently in the disarm ... LSI Computer Systems
Original
datasheet

4 pages,
29.18 Kb

LS7222-S LS7222 KEYPAD SWITCH debounce Keypad matrix 12 key internal input supply diagram to code lock A3800 7 digit lock code digital code lock system TEXT
datasheet frame
Abstract: ) 226-7833 Revised July 1989 KEYBOARD PROGRAMMABLE DIGITAL LOCK CIRCUIT CONNECTION DIAGRAM - TOP VIEW , lock implemented in a monolithic CMOS integrated circuit, packaged in a 20 pin DIP. The circuit , . the same code is chosen for arming and disarming, the entry of the code will cause the LOCK/UNLOCK , vice-versa. Whenever power is first applied to the LS7222 LS7222, the circuit defaults to the DISARM code cor , code, when entered from the keypad, causes the LOCK/UNLOCK output to latch high and the DISARM out ... OCR Scan
datasheet

4 pages,
219.43 Kb

TEXT
datasheet frame

Archived Files

Abstract Saved from Date Saved File Size Type Download
OVERVIEW The application described here consists of a coded lock for a door. A secret code is loaded into the lock system to allow the door to be unlocked only if the same access code is entered. When loaded of entered access code. - Door lock control. All the featured functions of the system are managed in secret code - Lock the door The digits used for the code are serially received, announced by the the coded door lock Lock the door Change secret code Digit Reception Flag Digit value to door locking
/datasheets/files/stmicroelectronics/stonline/books/ascii/an/4387.htm
STMicroelectronics 17/09/1999 10.43 Kb HTM 4387.htm
consists of a coded lock for a door. A secret code is loaded into the lock system to allow the door to be following features: - Secret code recording (3 digits). - Recognition of entered access code. - Door lock inputs: - Digit reception flag - Digit value (0.9) - Change secret code - Lock the door The digits used ( Lock, Change secret code) , or through some functional sub-blocks of the application ( One digit state-machine to initiate respectively the code recognition and conclude the Secret code entry. 4/6 CODED LOCK
/datasheets/files/stmicroelectronics/stonline/books/ascii/docs/4387.htm
STMicroelectronics 02/04/1999 8.61 Kb HTM 4387.htm
consists of a coded lock for a door. A secret code is loaded into the lock system to allow the door to be following features: - Secret code recording (3 digits). - Recognition of entered access code. - Door lock inputs: - Digit reception flag - Digit value (0.9) - Change secret code - Lock the door The digits used ( Lock, Change secret code) , or through some functional sub-blocks of the application ( One digit state-machine to initiate respectively the code recognition and conclude the Secret code entry. 4/6 CODED LOCK
/datasheets/files/stmicroelectronics/stonline/books/ascii/docs/4387-v2.htm
STMicroelectronics 14/06/1999 8.57 Kb HTM 4387-v2.htm
APPLICATION OVERVIEW The application described here consists of a coded lock for a door. A secret code is loaded into the lock system to allow the door to be unlocked only if the same access code is entered. digits). - Recognition of entered access code. - Door lock control. All the featured functions of the flag - Digit value (0.9) - Change secret code - Lock the door The digits used for the code are represented in Figure 1 Figure 1. Block diagram of the coded door lock Lock the door Change secret code
/datasheets/files/stmicroelectronics/stonline/books/ascii/docs/4387-v3.htm
STMicroelectronics 25/05/2000 10.31 Kb HTM 4387-v3.htm
OVERVIEW The application described here consists of a coded lock for a door. A secret code is loaded into the lock system to allow the door to be unlocked only if the same access code is entered. When loaded of entered access code. - Door lock control. All the featured functions of the system are managed in secret code - Lock the door The digits used for the code are serially received, announced by the the coded door lock Lock the door Change secret code Digit Reception Flag Digit value to door locking
/datasheets/files/stmicroelectronics/stonline/books/ascii/docs/4387-v4.htm
STMicroelectronics 16/01/2001 10.35 Kb HTM 4387-v4.htm
application described here consists of a coded lock for a door. A secret code is loaded into the lock system access code. - Door lock control. All the featured functions of the system are managed in the final - Lock the door The digits used for the code are serially received, announced by the activation of a coded door lock Lock the door Change secret code Digit Reception Flag Digit value to door locking system Sequencing Control EEPROM Code Recognition VR02063 VR02063 From User Interface 3/6 CODED LOCK USING THE
/datasheets/files/stmicroelectronics/stonline/books/ascii/docs/4387-v1.htm
STMicroelectronics 20/10/2000 10.49 Kb HTM 4387-v1.htm
No abstract text available
/download/69083261-314024ZC/an1836sw.zip ()
KyteLabs 10/06/2002 143.48 Kb ZIP an1836sw.zip
register, WDO output, active low reset  Name EEPROM Pkg Code Temp Range Suffix 100-300 PKG Code: M=MSOP, P=PDIP, S=SOIC, V=TSSOP -Block lock protect none or 1/2 of EEPROM • 400kHz 2-wire interface • 2.7V to supervision, and secondary voltage supervision, and Block Lock ™ protect serial EEPROM in one the power on reset circuit which holds RESET/RESET active for a period of time. This
/datasheets/files/xicor/www.xicor.com/folders/x40414.html
Xicor 07/02/2003 32.56 Kb HTML x40414.html
Name EEPROM Pkg Code Temp Range Suffix V CC (V) V TRIP (V) POR (ms -C 2.4-3.6 Vtrip=2.9/1.7/2.6 PKG Code: M=MSOP, P=PDIP, S=SOIC, V=TSSOP inadvertent write protection -Power-up/power-down protection circuitry -Block lock voltage supervision, secondary and third voltage supervision, manual reset, and Block Lock ™ power on reset circuit which holds RESET/RESET active for a period of time. This allows the
/datasheets/files/xicor/www.xicor.com/folders/x40430.html
Xicor 07/02/2003 37.43 Kb HTML x40430.html
with an integrated stereo DAC employing bitstream conversion techniques. A lock indication signal is available on pin LOCK, indicating that the IEC 958 decoder is locked. This pin is also used to converting IEC 958 input to CMOS levels Lock indication signal available on pin LOCK Lock indication signal combined on-chip with the Pulse Code Modulation (PCM) status bit; when non-PCM is detected, pin LOCK indicates out-of-lock Key channel-status bits available via L3 interface (lock, pre-emphasis
/datasheets/files/philips/pip/uda1351ts_2-v1.html
Philips 14/02/2002 8.36 Kb HTML uda1351ts_2-v1.html