PD77P25 Search Results

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 PD77P25 Input Voltage V pp ,PD77P25 - 0 .5 to +13.5

pd77p25

Abstract: 27FFH PD77C25
Contextual Info: ¿{PD77C25, 77P25 NEC 5. /PD77P25 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

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

Contextual Info: - ► DACK DRQ DMA Interface Logic - Instruction ROM PROM Note 2048 x 24 PC TT STACK SGN TRB RST INT V dd — w INTERRUPT N > O N CD CD o § OVAO CO CO CD CD —*• o CLK - GND — o IC A SA1 VppNote CO > o O < < CD CD -*■ O GJ o o * g > o DO > Note ¿¿PD77P25

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) /¿PD77P25C 28-pin plastic DIP (600 mil)

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 , /¿PD77P25C 28-p in ceram ic DIP (600 m il): /PD77P25D NC/VppNote O 28 — O Vdd 27 — O A0 26 — o 25 —O RD 24 —O WR 23 -*-0 SORQ 22 -+ 0 SO

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 /¿PD77P25 is a PROM. The address to be accessed is specified by Program

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/PD77P25 Digital Signal Processors DSP are significant upgrades to the /uPD7720—the

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 —