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P4C148

Part Number	P4C148
Manufacturer	Performance Semiconductor
Description	Ultra High Speed 4K x 1 Static CMOS RAMS
Published	Jun 1, 2005
Detailed Description	P4C148, P4C149 ULTRA HIGH SPEED 1K x 4 STATIC CMOS RAMS FEATURES Full CMOS, 6T Cell High Speed (Equal Access and Cycle T...
Datasheet	P4C148 PDF File

Overview

P4C148, P4C149 ULTRA HIGH SPEED 1K x 4 STATIC CMOS RAMS FEATURES Full CMOS, 6T Cell High Speed (Equal Access and Cycle Times) – 10/12/15/20/25 ns (Commercial) – 15/20/25/35 ns (P4C148 Military) Low Power Operation – 715 mW Active –10 (Commecial) – 550 mW Active –25 (Commercial) – 110 mW Standby (TTL Input) P4C148 – 55 mW Standby (CMOS Input) P4C148 Single 5V ± 10% Power Supply P4C148/P4C149 Two Options – P4C148 Low Power Standby Mode – P4C149 Fast Chip Select Control Common Input/Output Ports Three-State Outputs Fully TTL Compatible Inputs and Outputs Standard Pinout (JEDEC Approved) – 18 Pin 300 mil DIP DESCRIPTION The P4C148 and P4C149 are 4,096-bit ultra high-speed static RAMs organized as 1K x 4.
Both devices have common input/output ports.
The P4C148 enters the standby mode when the chip enable (CE) goes HIGH; with CMOS input levels, power consumption is extremely low in this mode.
The P4C149 features a fast chip select capability using CS.
The CMOS memories require no clocks or refreshing, and have equal access and cycle times.
Inputs are fully TTL-compatible.
The RAMs operate from a single 5V ± 10% tolerance power supply.
Access times as fast as 10 nanoseconds are available, permitting greatly enhanced system operating speeds.
CMOS is used to reduce power consumption when active; for the P4C148, consumption is further reduced in the standby mode.
The P4C148 and P4C149 are available in 18-pin 300 mil DIP packages providing excellent board level densities.
FUNCTIONAL BLOCK DIAGRAM A A A A A A I/O 1 I/O 2 I/O 3 I/O 4 PIN CONFIGURATIONS ROW SELECT 4,096-BIT MEMORY ARRAY A0 A1 A2 A3 1 2 3 4 5 6 7 8 9 18 17 16 15 14 13 12 11 10 V CC A9 A8 A7 I/O4 I/O3 I/O2 I/O1 WE INPUT DATA CONTROL COLUMN I/O A4 A5 A6 CE , CS GND POWER DOWN COLUMN SELECT CE/CS A P4C148 ONLY A A A P4C148 DIP (P1, D1) P4C149 DIP (P1) TOP VIEW WE Means Quality, Service and Speed 1Q97 19 P4C148/P4C149 MAXIMUM RATINGS(1) Symbol VCC Parameter Power Supply Pin with Respect to GN...

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