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參數資料
| 型號： | P4C188L-25CMB |
| 廠商： | PYRAMID SEMICONDUCTOR CORP |
| 元件分類： | DRAM |
| 英文描述： | ULTRA HIGH SPEED 16K x 4 STATIC CMOS RAMS |
| 中文描述： | 16K X 4 STANDARD SRAM, 25 ns, CDIP22 |
| 封裝： | 0.300 INCH, SIDE BRAZED, CERAMIC, DIP-22 |
| 文件頁數： | 1/12頁 |
| 文件大小： | 215K |
| 代理商： | P4C188L-25CMB |
1
Document #
SRAM112
REV A
Revised October 2005
DESCRIPTION
The P4C188 and P4C188L are 65,536-bit ultra high speed
static RAMs organized as 16K x 4. The CMOS memories
require no clocks or refreshing and have equal access and
cycle times. Inputs and outputs are fully TTL-compatible.
The RAMs operate from a single 5V±10% tolerance power
supply. With battery backup, data integrity is maintained for
supply voltages down to 2.0V. Current drain is typically 10
μA from a 2.0V supply.
Single 5V±10% Power Supply
Data Retention with 2.0V Supply
(P4C188L Military)
Three-State Outputs
TTL/CMOS Compatible Outputs
Fully TTL Compatible Inputs
Standard Pinout (JEDEC Approved)
– 22-Pin 300 mil DIP
– 24-Pin 300 mil SOJ
– 22-Pin 290 x 490 mil LCC
FEATURES
Full CMOS, 6T Cell
High Speed (Equal Access and Cycle Times)
– 10/12/15/20/25 ns (Commercial)
– 12/15/20/25/35 (Industrial)
– 15/20/25/35/45 ns (Military)
Low Power (Commercial/Military)
– 715 mW Active – 12/15
– 550/660 mW Active – 20/25/35/45
– 193/220 mW Standby (TTL Input)
– 83/110 mW Standby (CMOS Input) P4C188
– 15 mW Standby (CMOS Input)
(P4C188L Military)
FUNCTIONAL BLOCK DIAGRAM
PIN CONFIGURATIONS
P4C188/P4C188L
ULTRA HIGH SPEED 16K x 4
STATIC CMOS RAMS
DIP (P3, D3, C3)
LCC (L3)
For SOJ pin configuration, please see end of datasheet.
Access times as fast as 10 nanoseconds are available,
permitting greatly enhanced system speeds. CMOS is
utilized to reduce power consumption to a low 715mW
active, 193mW standby and only 5mW in the P4C188L
version.
The P4C188 and P4C188L are available in 22-pin 300 mil
DIP, 24-pin 300 mil SOJ and 22-pin LCC packages provid-
ing excellent board level densities.
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