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IDT70824S20

Description
Standard SRAM, 4KX16, 20ns, CMOS, CPGA84, PGA-84
Categorystorage    storage   
File Size210KB,21 Pages
ManufacturerIDT (Integrated Device Technology)
Download Datasheet Parametric View All

IDT70824S20 Overview

Standard SRAM, 4KX16, 20ns, CMOS, CPGA84, PGA-84

IDT70824S20 Parametric

Parameter NameAttribute value
MakerIDT (Integrated Device Technology)
Parts packaging codePGA
package instructionPGA,
Contacts84
Reach Compliance Codeunknown
ECCN codeEAR99
Maximum access time20 ns
JESD-30 codeS-CPGA-P84
JESD-609 codee0
memory density65536 bit
Memory IC TypeSTANDARD SRAM
memory width16
Number of functions1
Number of terminals84
word count4096 words
character code4000
Operating modeASYNCHRONOUS
Maximum operating temperature70 °C
Minimum operating temperature
organize4KX16
Package body materialCERAMIC, METAL-SEALED COFIRED
encapsulated codePGA
Package shapeSQUARE
Package formGRID ARRAY
Parallel/SerialPARALLEL
Certification statusNot Qualified
Maximum supply voltage (Vsup)5.5 V
Minimum supply voltage (Vsup)4.5 V
Nominal supply voltage (Vsup)5 V
surface mountNO
technologyCMOS
Temperature levelCOMMERCIAL
Terminal surfaceTIN LEAD
Terminal formPIN/PEG
Terminal locationPERPENDICULAR
HIGH SPEED 64K (4K X 16 BIT)
IDT70824S/L
SEQUENTIAL ACCESS
RANDOM ACCESS MEMORY (SARAM
)
Features
High-speed access
– Military: 35/45ns (max.)
– Commercial: 20/25/35/45ns (max.)
Low-power operation
– IDT70824S
Active: 775mW (typ.)
Standby: 5mW (typ.)
– IDT70824L
Active: 775mW (typ.)
Standby: 1mW (typ.)
4K x 16 Sequential Access Random Access Memory (SARAM
)
– Sequential Access from one port and standard Random
Access from the other port
– Separate upper-byte and lower-byte control of the
Random Access Port
High speed operation
– 20ns t
AA
for random access port
– 20ns t
CD
for sequential port
– 25ns clock cycle time
Architecture based on Dual-Port RAM cells
Compatible with Intel BMIC and 82430 PCI Set
Width and Depth Expandable
Sequential side
– Address based flags for buffer control
– Pointer logic supports up to two internal buffers
Battery backup operation - 2V data retention
TTL-compatible, single 5V (+10%) power supply
Available in 80-pin TQFP and 84-pin PGA
Military product compliant to MIL-PRF-38535 QML
Industrial temperature range (–40°C to +85°C) is available
for selected speeds
Description
The IDT70824 is a high-speed 4K x 16-Bit Sequential Access Random
Access Memory (SARAM). The SARAM offers a single-chip solution to
buffer data sequentially on one port, and be accessed randomly (asyn-
chronously) through the other port. The device has a Dual-Port RAM
based architecture with a standard SRAM interface for the random
(asynchronous) access port, and a clocked interface with counter se-
Functional Block Diagram
A
0-11
CE
OE
R/W
LB
LSB
MSB
UB
CMD
I/O
0-15
12
Random
Access
Port
Controls
Sequential
Access
Port
Controls
4K X 16
Memory
Array
16
12
12
12
12
12
RST
SCLK
CNTEN
SOE
SSTRT
1
SSTRT
2
SCE
SR/W
SLD
SI/O
0-15
,
Data
L
Addr
L
Data
R
Addr
R
16
Reg.
12
16
RST
Pointer/
Counter
Start Address for Buffer #1
End Address for Buffer #1
Start Address for Buffer #2
End Address for Buffer #2
Flow Control Buffer
Flag Status
12
EOB
1
COMPARATOR
EOB
2
3099 drw 01
MAY 2000
1
©2000 Integrated Device Technology, Inc.
DSC-3099/5
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