72210L25TP Integrated Device Technology (Idt), 72210L25TP Datasheet - Page 10

• Manufacturer Part Number: 72210L25TP
• Description: FIFO Mem Sync Dual Depth/Width Uni-Dir 512 x 8 28-Pin PDIP
• Manufacturer: Integrated Device Technology (Idt)

Specifications of 72210L25TP

• Package: 28PDIP
• Configuration: Dual
• Bus Directional: Uni-Directional
• Density: 4 Kb
• Organization: 512x8
• Data Bus Width: 8 Bit
• Timing Type: Synchronous
• Expansion Type: Depth|Width
• Typical Operating Supply Voltage: 5 V
• Operating Temperature: 0 to 70 °C

OPERATING CONFIGURATIONS
SINGLE DEVICE CONFIGURATION - A single IDT72420/72200/72210/
72220/72230/72240 may be used when the application requirements are
for 64/256/512/1,024/2,048/4,096 words or less. See Figure 10.
WIDTH EXPANSION CONFIGURATION - Word width may be increased
simply by connecting the corresponding input control signals of multiple
devices. A composite flag should be created for each of the endpoint status
flags (EF and FF) The partial status flags (AE and AF) can be detected from
IDT72420/72200/72210/72220/72230/72240 CMOS SYNCFIFO™
64 x 8, 256 x 8, 512 x 8, 1,024 x 8, 2,048 x 8, 4,096 x 8
DATA IN (D)
WRITE ENABLE (WEN)
WRITE CLOCK (WCLK)
ALMOST-FULL (AF)
FULL FLAG (FF) #2
WRITE CLOCK (WCLK)
FULL FLAG (FF) #1
WRITE ENABLE (WEN)
Figure 10. Block Diagram of Single 64 x 8, 256 x 8, 512 x 8, 1,024 x 8, 2,048 x 8, 4,096 x 8 Synchronous FIFO
ALMOST-FULL (AF)
16
DATA IN (D
FULL FLAG (FF)
Figure 11. Block Diagram of 64 x 16, 256 x 16, 512 x 16, 1,024 x 16, 2,048 x 16, 4,096 x 16
8
0-
D
7
)
Synchronous FIFO Used in a Width Expansion Configuration
RESET (RS)
72420
72200
72210
72220
72230
72240
IDT
8
72420
72200
72210
72220
72230
72240
IDT
10
any one device. Figure 11 demonstrates a 16-bit word width by using two
IDT72420/72200/72210/72220/72230/72240s. Any word width can be
attained by adding additional IDT72420/72200/72210/72220/72230/72240s.
RESET (RS)
8
RESET (RS)
72420
72200
72210
72220
72230
72240
IDT
READ CLOCK (RCLK)
READ ENABLE (REN)
OUTPUT ENABLE (OE)
DATA OUT (Q
EMPTY FLAG (EF)
ALMOST-EMPTY(AE)
COMMERCIAL TEMPERATURE RANGE
READ ENABLE (REN)
READ CLOCK (RCLK)
OUTPUT ENABLE (OE)
ALMOST-EMPTY (AE)
EMPTY FLAG (EF) #1
EMPTY FLAG (EF) #2
8
DATA OUT(Q)
0
-Q
7
)
JANUARY 8, 2009
2680 drw 12
16
2680 drw 13