参数资料
型号: P4C1256L70PCLF
厂商: PYRAMID SEMICONDUCTOR CORP
元件分类: DRAM
英文描述: LOW POWER 32K x 8 STATIC CMOS RAM
中文描述: 32K X 8 STANDARD SRAM, 70 ns, PDIP28
封装: 0.300 INCH, ROHS COMPLIANT, PLASTIC, DIP-28
文件页数: 1/11页
文件大小: 123K
代理商: P4C1256L70PCLF
1
Document #
SRAM121
REV E
Revised J une 2007
V
Current (Commercial/Industrial)
— Operating: 70mA/85mA
— CMOS Standby: 100μA/100μA
Access Times
—55/70 (Commercial or Industrial)
Single 5 Volts ±10% Power Supply
Easy Memory Expansion Using
Inputs
CE
and
OE
locations are specified on address pins A
to A
. Read-
ing is accomplished by device selection (
CE
and output
enabling (
OE
) while write enable (
WE
) remains HIGH.
By presenting the address under these conditions, the
data in the addressed memory location is presented on
the data input/output pins. The input/output pins stay in
the HIGH Z state when either
CE
or
OE
is HIGH or
WE
is LOW.
Package options for the P4C1256L include 28-pin 600
mil DIP, 28-pin 300 mil CERDIP, and 28-pin 300 mil Nar-
row Body SOP packages.
P4C1256L
LOW POWER 32K x 8
STATIC CMOS RAM
Common Data I/O
Three-State Outputs
Fully TTL Compatible Inputs and Outputs
Advanced CMOS Technology
Automatic Power Down
Packages
—28-Pin 600 mil DIP
—28-Pin 300 mil CERDIP
—28-Pin 300 mil Narrow Body SOP
FUNCTIONAL BLOCK DIAGRAM
PIN CONFIGURATION
DESCRIPTION
The P4C1256L device provides asynchronous opera-
tion with matching access and cycle times. Memory
FEATURES
The P4C1256L is a 262,144-bit low power CMOS
static RAM organized as 32Kx8. The CMOS memory
requires no clocks or refreshing, and has equal access
and cycle times. Inputs are fully TTL-compatible. The
RAM operates from a single 5V±10% tolerance power
supply.
Access times of 55 ns and 70 ns are available. CMOS
is utilized to reduce power consumption to a low level.
DIP (P6, D5-2), SOP (S11-3)
TOP VIEW
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