IDT7028L20PF IDT, Integrated Device Technology Inc, IDT7028L20PF Datasheet - Page 11

• Manufacturer Part Number: IDT7028L20PF
• Description: IC SRAM 1MBIT 20NS 100TQFP
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of IDT7028L20PF

• Format - Memory: RAM
• Memory Type: SRAM - Dual Port, Asynchronous
• Memory Size: 1M (64K 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
• Density: 1Mb
• Access Time (max): 20ns
• Sync/async: Asynchronous
• Architecture: Not Required
• Clock Freq (max): Not RequiredMHz
• Operating Supply Voltage (typ): 5V
• Address Bus: 32b
• Package Type: TQFP
• Operating Temp Range: 0C to 70C
• Number Of Ports: 2
• Supply Current: 300mA
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 100
• Word Size: 16b
• Number Of Words: 64K
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 7028L20PF

Timing Waveform of Write with Port-to-Port Read and BUSY (M/S = V
DATA
NOTES:
1. To ensure that the earlier of the two ports wins. t
2. CE
3. OE = V
4. If M/S = V
5. 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".
Timing Waveform of Write with BUSY (M/S = V
NOTES:
1. t
2. BUSY is asserted on port "B" blocking R/W
3. t
IDT7028L
High-Speed 64K x 16 Dual-Port Static RAM
DATA
ADDR
ADDR
WH
WB
BUSY
L
R/W
OUT "B"
is only for the 'Slave' version.
must be met for both BUSY input (SLAVE) and output (MASTER).
= CE
IN "A"
IL
"A"
"A"
"B"
"B"
for the reading port.
R
IL
= V
(SLAVE), BUSY is an input. Then for this example BUSY
IL,
refer to Chip Enable Truth Table.
t
APS
(1)
BUSY
R/W
R/W
"A"
"B"
"B"
"B"
, until BUSY
APS
is ignored for M/S = V
"B"
t
WB
goes HIGH.
(3)
t
BAA
"A"
= V
MATCH
IL
t
IH
WC
6.42
(SLAVE).
11
t
and BUSY
WP
(2)
t
WP
"B"
input is shown above.
MATCH
Industrial and Commercial Temperature Ranges
IL
t
DW
t
WDD
)
VALID
t
WH
(1)
4836 drw 12
t
DDD
(3)
t
BDA
.
t
DH
IH
4836 drw 11
t
)
BDD
(2,4,5)
VALID