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Teilenummer | P4C1299L |
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Beschreibung | STATIC CMOS RAM | |
Hersteller | PYRAMID | |
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Gesamt 11 Seiten FEATURES
Full CMOS, 6T Cell
High Speed (Equal Access and Cycle Times)
– 15/20/25/35 ns (Commercial/Industrial)
– 15/20/25/35/45 ns (Military)
Low Power Operation
Single 5V±10% Power Supply
Output Enable (OE) & Chip Enable (CE1 and CE2)
Control Functions
P4C1299/P4C1299L
ULTRA HIGH SPEED 64K x 4
STATIC CMOS RAM
Data Retention with 2.0V Supply (P4C1299L)
Three-State Outputs
TTL/CMOS Compatible Outputs
Fully TTL Compatible Inputs
Standard Pinout (JEDEC Approved)
– 28-Pin 300 mil DIP, SOJ
– 28-Pin 350x550 mil LCC
DESCRIPTION
The P4C1299 and P4C1299L are a 262,144-bit ultra high-
speed static RAM organized as 64K x 4.The CMOS memory
requires no clock or refreshing and has equal access and
cycle times. Inputs and outputs are fully TTL-compatible.
The RAM operates from a single 5V±10% tolerance power
supply. With battery backup (P4C1299LOnly), data integrity
is maintained for supply voltages down to 2.0V. Current
drain is typically 10 µA from a 2.0V supply.
Access times as fast as 15 nanoseconds are available,
permitting greatly enhanced system speeds. CMOS is
utilized to reduce power consumption.
The P4C1299 and P4C1299L are available in a 28-pin
300 mil DIP or SOJ, as well as a 28-pin 350x550 mil LCC
package, providing excellent board level densities.
Functional Block Diagram
Pin ConfigurationS
Document # SRAM144 REV OR
DIP (P5, C5)
SOJ (J5)
LCC (L5)
Created Nov 2012
P4C1299/P4C1299L - ULTRA HIGH SPEED 64K x 4 STATIC CMOS RAM
Timing Waveform of Write Cycle No. 2 (CE Controlled)(10)
AC TEST CONDITIONS
Input Pulse Levels
Input Rise and Fall Times
Input Timing Reference Level
Output Timing Reference Level
Output Load
TRUTH TABLE
Mode
Deselect/Power-Down
Read
Write
Deselect
GND to 3.0V
3ns
1.5V
1.5V
See Figures 1 and 2
CE1
CE2
HX
XH
LL
LL
LL
WE
X
X
H
L
H
OE I/O
X
High Z
X
L Data Out
X Data In
H High Z
Power
Standby
Active
Active
Active
Document # SRAM144 REV OR
Page 6
6 Page | ||
Seiten | Gesamt 11 Seiten | |
PDF Download | [ P4C1299L Schematic.PDF ] |
Teilenummer | Beschreibung | Hersteller |
P4C1299 | STATIC CMOS RAM | PYRAMID |
P4C1299L | STATIC CMOS RAM | PYRAMID |
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