IDT70261L20PF IDT, Integrated Device Technology Inc, IDT70261L20PF Datasheet - Page 13

• Manufacturer Part Number: IDT70261L20PF
• Description: IC SRAM 256KBIT 20NS 100TQFP
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of IDT70261L20PF

• Format - Memory: RAM
• Memory Type: SRAM - Dual Port, Asynchronous
• Memory Size: 256K (16K x 16)
• Speed: 20ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 70261L20PF

Waveform of BUSY Arbitration Controlled by CE Timing (M/S = V
Waveform of BUSY Arbitration Cycle Controlled by
Address Match Timing (M/S = V
NOTES:
1. All timing is the same for left and right ports. Port “A” may be either the left or right port. Port “B” is the port opposite from port “A”.
2. If t
NOTES:
1. 'X' in part numbers indicates power rating (S or L).
AC Electrical Characteristics Over the
Operating Temperature and Supply Voltage Range
INTERRUPT TIMING
INTERRUPT TIMING
t
t
t
t
t
t
t
t
AS
WR
INS
INR
AS
WR
INS
INR
IDT70261S/L
High-Speed 16K x 16 Dual-Port Static RAM with Interrupt
Symbol
Symbol
ADDR
ADDR
BUSY
ADDR
BUSY
APS
and
CE
CE
is not satisfied, the BUSY signal will be asserted on one side or another but there is no guarantee on which side BUSY will be asserted.
"A"
"B"
"B"
"A"
"B"
"A"
"B"
"B"
Interrupt Set Time
Interrupt Reset Time
Interrupt Set Time
Interrupt Reset Time
Address Set-up Time
Write Recovery Time
Address Set-up Time
Write Recovery Time
t
APS
(2)
Parameter
t
APS
(2)
t
BAA
Parameter
ADDRESS "N"
MATCHING ADDRESS "N"
t
BAC
IH
)
ADDRESSES MATCH
(1)
6.42
13
Min.
____
____
0
0
Com'l Only
70261X15
Max.
____
____
15
15
Industrial and Commercial Temperature Ranges
Min.
Min.
____
____
____
____
0
0
0
0
t
t
Com'l & Ind
Com'l Only
BDC
BDA
70261X35
70261X20
(1)
Max.
Max.
____
____
____
____
25
25
20
20
Min.
Min.
____
____
____
____
0
0
0
0
Com'l & Ind
Com'l Only
70261X55
70261X25
IH
Max.
Max.
____
____
____
____
40
40
20
20
)
(1)
3039 drw 14
3039 drw 13
3039 tbl 15b
3039 tbl 15a
Unit
Unit
ns
ns
ns
ns
ns
ns
ns
ns