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參數資料
| 型號： | P4C1256-25PMBLF |
| 廠商： | PYRAMID SEMICONDUCTOR CORP |
| 元件分類： | DRAM |
| 英文描述： | HIGH SPEED 32K x 8 STATIC CMOS RAM |
| 中文描述： | 32K X 8 STANDARD SRAM, 25 ns, PDIP28 |
| 封裝： | 0.300 INCH, ROHS COMPLIANT, PLASTIC, DIP-28 |
| 文件頁數： | 1/17頁 |
| 文件大小： | 183K |
| 代理商： | P4C1256-25PMBLF |
1
Document #
SRAM119
REV G
Revised J une 2007
P4C1256
HIGH SPEED 32K x 8
STATIC CMOS RAM
High Speed (Equal Access and Cycle Times)
— 12/15/20/25/35 ns (Commercial)
— 15/20/25/35/45 ns (Industrial)
— 20/25/35/45/55/70 ns (Military)
Low Power
Single 5V±10% Power Supply
Easy Memory Expansion Using
Inputs
Common Data I/O
Three-State Outputs
CE
and
OE
FUNCTIONAL BLOCK DIAGRAM
PIN CONFIGURATIONS
1519B
Fully TTL Compatible Inputs and Outputs
Advanced CMOS Technology
Fast t
Automatic Power Down
Packages
—28-Pin 300 mil DIP, SOJ, TSOP
—28-Pin 300 mil Ceramic DIP
—28-Pin 600 mil Ceramic DIP
—28-Pin CERPACK
—28-Pin SOP
—28-Pin LCC (350 mil x 550 mil)
—32-Pin LCC (450 mil x 550 mil)
FEATURES
DESCRIPTION
The P4C1256 is a 262,144-bit high-speed 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 as fast as 12 nanoseconds permit greatly
enhanced system operating speeds. CMOS is utilized
to reduce power consumption to a low level. The
P4C1256 is a member of a family of PACE RAM prod-
ucts offering fast access times.
DIP (P5, C5, C5-1, D5-2), SOJ (J5), SOP (S11-1, S11-3)
CERPACK (F4) SIMILAR
See end of datasheet for LCC and TSOP
pin configurations.
The P4C1256 device provides asynchronous operation
with matching access and cycle times. Memory loca-
tions are specified on address pins A
to A
. Reading
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 P4C1256 include 28-pin 300
mil DIP, SOJ and TSOP packages. For military tempera-
ture range, Ceramic DIP and LCC packages are avail-
able.
相關PDF資料 |
PDF描述 |
|---|---|
| P4C1256-25PMLF | HIGH SPEED 32K x 8 STATIC CMOS RAM |
| P4C1256-25SCLF | HIGH SPEED 32K x 8 STATIC CMOS RAM |
| P4C1256-25SILF | HIGH SPEED 32K x 8 STATIC CMOS RAM |
| P4C1256-25SMBLF | HIGH SPEED 32K x 8 STATIC CMOS RAM |
| P4C1256-25SMLF | HIGH SPEED 32K x 8 STATIC CMOS RAM |
相關代理商/技術參數 |
參數描述 |
|---|---|
| P4C1256-25PMLF | 制造商:PYRAMID 制造商全稱:Pyramid Semiconductor Corporation 功能描述:HIGH SPEED 32K x 8 STATIC CMOS RAM |
| P4C1256-25SCLF | 制造商:PYRAMID 制造商全稱:Pyramid Semiconductor Corporation 功能描述:HIGH SPEED 32K x 8 STATIC CMOS RAM |
| P4C1256-25SILF | 制造商:PYRAMID 制造商全稱:Pyramid Semiconductor Corporation 功能描述:HIGH SPEED 32K x 8 STATIC CMOS RAM |
| P4C1256-25SMBLF | 制造商:PYRAMID 制造商全稱:Pyramid Semiconductor Corporation 功能描述:HIGH SPEED 32K x 8 STATIC CMOS RAM |
| P4C1256-25SMLF | 制造商:PYRAMID 制造商全稱:Pyramid Semiconductor Corporation 功能描述:HIGH SPEED 32K x 8 STATIC CMOS RAM |
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