IDT70V25L25PFGI8 IDT, Integrated Device Technology Inc, IDT70V25L25PFGI8 Datasheet - Page 10

• Manufacturer Part Number: IDT70V25L25PFGI8
• Description: IC SRAM 128KBIT 25NS 100TQFP
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of IDT70V25L25PFGI8

• Format - Memory: RAM
• Memory Type: SRAM - Dual Port, Asynchronous
• Memory Size: 128K (8K x 16)
• Speed: 25ns
• Interface: Parallel
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 70V25L25PFGI8

Waveform of Read Cycles
NOTES:
1. Timing depends on which signal is asserted last, OE, CE, LB, or UB.
2. Timing depends on which signal is de-asserted first, CE, OE, LB, or UB.
3. t
4. Start of valid data depends on which timing becomes effective last t
5. SEM = V
AC Electrical Characteristics Over the Operating
Temperature and Supply Voltage Range for 70V35/34
NOTES:
1. Transition is measured 0mV from Low or High-impedance voltage with Output Test Load (Figure 2).
2. This parameter is guaranteed by device characterization, but is not production tested.
3. To access RAM, CE = V
4. 'X' in part number indicates power rating (S or L).
READ CYCLE
t
t
t
t
t
t
t
t
t
t
t
t
RC
AA
ACE
ABE
AOE
OH
LZ
HZ
PU
PD
SOP
SAA
IDT70V35/34S/L (IDT70V25/24S/L)
High-Speed 3.3V 8/4K x 18 (8/4K x 16) Dual-Port Static RAM
has no relation to valid output data.
Symbol
BDD
delay is required only in case where opposite port is completing a write operation to the same address location for simultaneous read operations BUSY
IH
.
DATA
BUSY
Read Cycle Time
Address Access Time
Chip Enable Access Time
Byte Enable Access Time
Output Enable Access Time
Output Hold from Address Change
Output Low-Z Time
Output High-Z Time
Chip Enable to Power Up Time
Chip Disable to Power Down Time
Semaphore Flag Update Pulse (OE or SEM)
Semaphore Address Access
UB, LB
ADDR
R/W
OUT
OUT
CE
OE
IL
,
UB or LB = V
(1,2)
(1,2)
Parameter
IL
(3)
(3)
, and
(3)
(3)
(1,2)
SEM = V
(1,2)
(5)
t
t
t
t
AA
ACE
AOE
t
LZ
ABE
IH
(1)
(4)
.
(4)
(4)
(4)
To access semaphore, CE = V
ABE
,
t
t
RC
AOE
6.42
,
t
10
t
ACE
BDD
,
VALID DATA
(3,4)
t
AA
Min.
____
____
____
____
____
____
____
15
10
70V35/34X15
3
3
0
Com'l Only
or t
BDD
IH
or
.
(4)
UB & LB = V
Max.
____
____
____
____
____
15
15
15
10
10
15
15
Industrial and Commercial Temperature Ranges
Min.
IH
____
____
____
____
____
____
____
20
10
70V35/34X20
3
3
0
, and
Com'l
& Ind
SEM = V
t
(4)
HZ
t
(2)
OH
Max.
____
____
____
____
____
20
20
20
20
20
12
12
IL
.
Min.
____
____
____
____
____
____
____
25
10
70V35/34X25
3
3
0
Com'l Only
5624 drw 08
Max.
____
____
____
____
____
25
25
25
13
15
25
25
5624 tbl 11
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns