77P25 Search Results

uPD7720

Abstract: uPD77C25 uPD77P25C uPD77P25 uPD77P25D 77P25 UPD77C25GW-XXX 77c25 PD7720 uPD77P25GW
Contextual Info: DATA SHEET MOS INTEGRATED CIRCUIT µPD77C25, 77P25 DIGITAL SIGNAL PROCESSOR The µPD77C25, 77P25 are 16-bit fixed point CMOS signal processors intended for real-time digital processing of speech signals. Each device consists of a parallel multiplier 16 x 16 bits → 31 bits , an ALU (16 bits), an instruction ROM (2,048

D77P25

Abstract: UV-prom pd77p25 uPD77p25 PD77C25
Contextual Info: NEC ¿{PD77C25, 77P25 6. ELECTRICAL SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS T a = 2 5 °C Param eters Power Supply Voltage Sym bol V dd Conditions P roduct names ,uPD77C25 Ratings Unit - 0 .5 to +7.0 V 77P25 Input Voltage V pp ,77P25 - 0 .5 to +13.5

pd77p25

Abstract: 27FFH PD77C25
Contextual Info: ¿{PD77C25, 77P25 NEC 5. /77P25 PROM INTERFACE 1 Input/Output Data Format One word of the instruction ROM consists of 24 bits, while 16 bits make up one data ROM word. Data are programed to or read from these PROMs in units of 8 bits (byte). Therefore, special address are assigned

D650

Contextual Info: ¿¿PD77C25, 77P25 NEC 7. PACKAGE DRAWINGS 28 PIN PLASTIC DIP 600 mil 28 15 NOTES 1) Each lead c e n te rlin e is lo ca te d w ith in 0.2 5 mm (0.01 inch) of its true p o sitio n (T.P .) at m axim um m ate ria l cond itio n . MILLIMETERS INCHES A 3 8 .1 0 M A X .

Contextual Info: NEC_ ¿{PD77C25, 77P25 4. INSTRUCTION EXECUTION TIMING The /¿PD77C25 operates according to the external square wave applied to the CLK pin. This square wave is internally divided into tw o to generate two phases of clocks as shown for internal operation.

IR35-207-2

Contextual Info: ¿{PD77C25, 77P25 NEC ★ 8. RECOMMENDED SOLDERING CONDITIONS When soldering this product, it is highly recommended to observe the conditions as shown below. If other soldering processes are used, or if the soldering is performed under different conditions, please make sure to consult with our

UPD77C25GW

Contextual Info: NEC ¿{PD77C25, 77P25 ★ O RDERING INFO RM ATIO N Part Number Package /xPD77C25C-xxx 28-pin plastic DIP 600 mil /jPD77C25GW-xxx 32-pin plastic SOP (525 mil) /¿ P D 7 7 C 2 5 L -X X X 4-4—pin plastic QFJ (650 x 650 mil) /¿77P25C 28-pin plastic DIP (600 mil)

77C25 nec

Abstract: PD77C25
Contextual Info: NEC J/PD77C25/77P25 Digital Signal Processor NEC Electronics Inc. Description □ Drop-in com patible with 77C20A/7720A/77P20 T h e P D 7 7 C 2 5 77P25 Digital Signal Processors DSP are significant upgrades to the f iPD7720— the original m em ber of NEC ’s DSP family. /JPD77C25 is the

PD77C25

Abstract: CLK19 77p25 uPD77C25 uPD77P25C UPD77P25D
Contextual Info: NEC ¿{PD77C25, 77P25 ★ PIN CONFIGURATIONS Top View 28-pin plastic DIP (600 m il): /iP D 7 7 C 2 5 C -x x x , /¿77P25C 28-p in ceram ic DIP (600 m il): /77P25D NC/VppNote O 28 — O Vdd 27 — O A0 26 — o 25 —O RD 24 —O WR 23 -*-0 SORQ 22 -+ 0 SO

uPD7720

Contextual Info: NEC ¿{PD77C25, 77P25 DIFFERENCES BETWEEN /xPD77C25 AND /xPD7720 FAMILY The /JPD77C25 has enhanced functions of the conventional /JPD7720 16-bit signal processor family and thus is compatible with the /¿PD7720 family at an assembler source program level.

PD77C25

Contextual Info: ¿{PD77C25, 77P25 NEC 2. INTERNAL FUNCTIONS 1 Instruction ROM This ROM stores the program of the /JPD77C25 and has a capacity of 2K words x 24 bits. In the /iPD77C25 this is a mask ROM and in the /¿77P25 is a PROM. The address to be accessed is specified by Program

UPD77C25

Abstract: OVA1
Contextual Info: NEC ¿{PD77C25, 77P25 3. INSTRUCTION All instructions of the /¿PD77C25 are one w ord instruction; one instruction is com posed of 24 bits. The instructions are divided into the following four types. OP instruction : T his instruction is used to perform operations such as ordinary arithm etic operations and data

77p25

Abstract: ic 2312
Contextual Info: DATA SHEET MOS INTEGRATED CIRCUIT ¿¿PD77C25, 77P25 DIGITAL SIGNAL PROCESSOR The /¿PD77C25, 77P25 are 16-bit fixed point CMOS signal processors intended for real-time digital processing of speech signals. Each device consists of a parallel multiplier 1 6 x 1 6 bits -^3 1 bits , an ALU (16 bits), an instruction ROM (2,048

D77C25

Abstract: 77c25 PD77C25 interfacing of RAM and ROM with 8085 JPD780 77C25 nec PD77P25 77P25C 77C20A EVAKIT-77C25
Contextual Info: N E C ELECTRONICS INC LIE D WË fc,M275E5 0033007 321 BINECE jjPD77C25/77P25 Digital Signal Processor NEC Electronics Inc. Description □ Drop-in com patible w ith 77C20A/7720A/77P20 ThepPD77C25 and/77P25 Digital Signal Processors DSP are significant upgrades to the /uPD7720—the

Contextual Info: ¿{PD77C25, 77P25 NEC CONTENTS 1. PIN FUNCTIONS. 8 1.1 Pin Functions for NormalO

Contextual Info: NEC ¿{PD77C25, 77P25 1. PIN FUNCTIONS 1.1 Pin Functions for Normal Operation Pin Pin N um ber Designation I/O Function 28-pin Plastic DIP, 32-pin Plastic SO P 44-pin Plastic QFJ 28-pin Ceramic DIP 28 V dd GND 14 V p p Note 1 31 1 32 44 15 21 16 22 2 2 —

Contextual Info: NEC ¿{PD77C25, 77P25 [MEMO] The e xp o rt of this p ro d u ct from Japan is regulated by the J a p a n e se go ve rn m e nt. To e xp o rt this p ro d u ct m ay be p ro h ib ite d w ith o u t go ve rn m e nta l license, the need fo r w h ich m ust be ju d g e d by the custom er. T he e xp o rt o r re-e xp o rt o f this p ro d u ct

PD77C25

Abstract: D77C25C D77P25C RA77C25 uPD7720 7720A 77c25 77C20 p25g EVAKIT-77C25
Contextual Info: NEC V P D 77C 25/77P 25 D igital Signal Processor NEC E lectronics Inc. Description Q Drop-in com patible with 77C20A/7720A/77P20 The^PD77C25and/77P25 Digital Signal Processors DSP are significant upgrades to the /JPD7720— the original m em ber of N EC’s DSP family. /JPD77C25 is the