IDT70V3579S5BCI8 IDT, Integrated Device Technology Inc, IDT70V3579S5BCI8 Datasheet - Page 14

• Manufacturer Part Number: IDT70V3579S5BCI8
• Description: IC SRAM 1.125MBIT 5NS 256BGA
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of IDT70V3579S5BCI8

• Format - Memory: RAM
• Memory Type: SRAM - Dual Port, Synchronous
• Memory Size: 1.125M (32K x 36)
• Speed: 5ns
• Interface: Parallel
• Voltage - Supply: 3.15 V ~ 3.45 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 256-BGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 70V3579S5BCI8

Timing Waveform of Write with Address Counter Advance
Timing Waveform of Counter Reset
NOTES:
1. CE
2. CE
3. The "Internal Address" is equal to the "External Address" when ADS = V
4. Addresses do not have to be accessed sequentially since ADS = V
5. Output state (High, Low, or High-impedance) is determined by the previous cycle control signals.
6. No dead cycle exists during counter reset. A READ or WRITE cycle may be coincidental with the counter reset cycle: A
7. CNTEN = V
IDT70V3579S
High-Speed 32K x 36 Dual-Port Synchronous Pipelined Static RAM
use only.
are shown here simply for clarification.
written to during this cycle.
INTERNAL
ADDRESS
ADDRESS
INTERNAL
ADDRESS
ADDRESS
0
0
DATA
, BE
, BE
DATA
CNTRST
CNTEN
DATA
CNTEN
n
n
CLK
ADS
, and R/W = V
ADS
CLK
R/
= V
OUT
IN
IL
W
IN
(3)
IL
(3)
advances Internal Address from ‘An’ to ‘An +1’. The transition shown indicates the time required for the counter to advance. The ‘An +1’Address is
; CE
(5)
1
= V
t
Ax
SRST
t
t
IL
SAD
t
SA
SD
IH
; CE
.
An
Dn
EXTERNAL
ADDRESS
t
HRST
t
WRITE
t
t
1
HAD
HD
HA
t
CH2
t
and CNTRST = V
COUNTER
CH2
RESET
t
CYC2
t
CYC2
An
t
CL2
t
CL2
t
(7)
t
SAD
SCN
t
t
t
(6)
SW
SD
SCN
Dn + 1
D
t
0
t
HCN
t
HAD
t
t
WITH COUNTER
HW
IH
HD
HCN
.
ADDRESS 0
WRITE
WRITE
0
Dn + 1
IL
An + 1
COUNTER HOLD
constantly loads the address on the rising edge of the CLK; numbers are for reference
ADDRESS 0
IL
WRITE
READ
and equals the counter output when ADS = V
6.42
(2)
14
Dn + 2
ADDRESS 1
READ
An + 2
1
Industrial and Commercial Temperature Ranges
t
SA
An
Dn + 3
Q
0
t
WRITE WITH COUNTER
HA
ADDRESS n
READ
An
An + 3
IH
.
(4)
DDR
An + 1
Dn + 4
Q
ADDRESS n+1
0 will be accessed. Extra cycles
1
(1)
READ
An + 1
An + 4
4830 drw 12
An + 2
4830 drw 13
Qn