參數(shù)資料
型號(hào): IDT723633L12PF8
廠商: IDT, Integrated Device Technology Inc
文件頁(yè)數(shù): 19/28頁(yè)
文件大?。?/td> 0K
描述: IC FIFO SYNC 512X36 128-TQFP
標(biāo)準(zhǔn)包裝: 1,000
系列: 7200
功能: 同步
存儲(chǔ)容量: 18.4K(512 x 36)
數(shù)據(jù)速率: 83MHz
訪問時(shí)間: 12ns
電源電壓: 4.5 V ~ 5.5 V
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 128-LQFP
供應(yīng)商設(shè)備封裝: 128-TQFP(14x20)
包裝: 帶卷 (TR)
其它名稱: 723633L12PF8
26
COMMERCIALTEMPERATURERANGE
IDT723623/723633/723643 BUS-MATCHING SyncFIFO
256 x 36, 512 x 36, 1,024 x 36
Figure 18. Timing for Mail2 Register and
MBF2
MBF2 Flag (IDT Standard and FWFT Modes)
NOTE:
1. If Port B is configured for word size, data can be written to the Mail2 Register using B0-B17 (B18-B35 are don't care inputs). In this first case A0-A17 will have valid data (A18-A35 will
be indeterminate). If Port B is configured for byte size, data can be written to the Mail2 Register using B0-B8 (B9-B35 are don't care inputs). In this second case, A0-A8 will have valid
data (A9-A35 will be indeterminate).
Figure 19. Block Diagram of 256 x 36, 512 x 36, 1,024 x 36 Synchronous FIFO Memory with
Programmable Flags used in Depth Expansion Configuration
NOTES:
1. Mailbox feature is not supported in depth expansion applications. (MBA + MBB tie to GND)
2. Transfer clock should be set either to the Write Port Clock (CLKA) or the Read Port Clock (CLKB), whichever is faster.
3. The amount of time it takes for
EF/OR of the last FIFO in the chain to go HIGH (i.e. valid data to appear on the last FIFO’s outputs) after a word has been written to the first FIFO
is the sum of the delays for each individual FIFO: (N - 1)*(4*transfer clock) + 3*TRCLK, where N is the number of FIFOs in the expansion and TRCLK is the CLKB period.
4. The amount of time it takes for
FF/IR of the first FIFO in the chain to go HIGH after a word has been read from the last FIFO is the sum of the delays for each individual FIFO:
(N - 1)*(3*transfer clock) + 2*TWCLK, where N is the number of FIFOs in the expansion and TWCLK is the CLKA period.
DATA IN (Dn)
READ CLOCK (CLKB)
READ ENABLE (ENB)
EMPTY FLAG/
OUTPUT READY (EF/OR)
CHIP SELECT (CSB)
DATA OUT (Qn)
TRANSFER CLOCK
3269 drw20
IDT
723623
723633
723643
VCC
IDT
723623
723633
723643
WRITE
READ
A0-A35
MBA
CHIP SELECT (CSA)
WRITE SELECT (W/RA)
WRITE ENABLE (ENA)
ALMOST-FULL FLAG (AF)
FULL FLAG/
INPUT READY (FF/IR)
WRITE CLOCK (CLKA)
CLKB
EF/OR
ENB
CSB
B0-B35
W/RB
MBB
CLKA
ENA
FF/IR
CSA
MBA
A0-A35
W/RA
READ SELECT (W/RB)
ALMOST-EMPTY FLAG (AE)
B0-B35
MBB
VCC
n
Qn
Dn
VCC
3269 drw19
CLKB
ENB
B0-B35
MBB
CSB
W/RB
CLKA
MBF2
CSA
MBA
ENA
A0-A35
W/RA
tENH
tDS
tDH
tENS2
tENH
tDIS
tEN
tMDV
tPMR
FIFO Output Register
W1 (Remains valid in Mail2 Register after read)
tENH
tPMF
W1
tENS1
tENS2
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