P4C187-25LMB 查看數據表（PDF） - Performance Semiconductor

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P4C187-25LMB

ULTRA HIGH SPEED 64K x 1 STATIC CMOS RAMS

Performance Semiconductor 

P4C187/P4C187L

ULTRA HIGH SPEED 64K x 1

STATIC CMOS RAMS

FEATURES

Full CMOS, 6T Cell

High Speed (Equal Access and Cycle Times)

– 10/12/15/20/25 ns (Commercial)

– 12/15/20/25/35 ns (Industrial)

– 15/20/25/35/45 ns (Military)

Low Power Operation

– 743 mW Active -10

– 660/770 mW Active for -12/15

– 550/660 mW Active for -20/25/35

– 193/220 mW Standby (TTL Input)

– 83/110 mW Standby (CMOS Input) P4C187

– 5.5 mW Standby (CMOS Input) P4C187L (Military)

Single 5V±10% Power Supply

Data Retention with 2.0V Supply (P4C187L Military)

Separate Data I/O

Three-State Output

TTL Compatible Output

Fully TTL Compatible Inputs

Standard Pinout (JEDEC Approved)

– 22-Pin 300 mil DIP

– 24-Pin 300 mil SOJ

– 22-Pin 290x490 mil LCC

DESCRIPTION

The P4C187/L are 65, 536-bit ultra high speed static RAMs

organized as 64K x 1. The CMOS memories require no

clocks or refreshing and have equal access and cycle times.

The RAMs operate from a single 5V ± 10% tolerance power

supply. Data integrity is maintained for supply voltages down

to 2.0V, typically drawing 10µA.

Access times as fast as 10 nanoseconds are available,

greatly enhancing system speeds. CMOS reduces power

consumption to a low 743mW active, 193/83mW standby

for TTL/CMOS inputs and only 5.5 mW standby for the

P4C187L.

The P4C187/L are available in 22-pin 300 mil DIP, 24-pin

300 mil SOJ, and 22-pin LCC packages providing excellent

board level densities.

FUNCTIONAL BLOCK DIAGRAM

A

(8)

ROW

SELECT

65,356-BIT

MEMORY

ARRAY

A

DIN

INPUT

DATA

CONTROL

COLUMN I/O

COLUMN

SELECT

CE

A

A

(8)

WE

DOUT

PIN CONFIGURATIONS

A0 1

A1 2

A2 3

A3 4

A4 5

A5 6

A6 7

A7 8

DOUT 9

WE 10

GND 11

22 VCC

21 A15

20 A14

19 A13

18 A12

17 A11

16 A10

15 A9

14 A8

13 DIN

12 CE

A2

A3

A4

A5

A6

A7

DOUT

2

21

3

22 20

1

4

19

5

18

6

17

7

16

8

15

9

11 12 14

10

13

A14

A13

A12

A11

A10

A9

A8

DIP (P3, D3)

TOP VIEW

LCC (L3)

TOP VIEW

For SOJ pin configuration, please see Selection Guide.

Means Quality, Service and Speed

1Q97

55

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