參數(shù)資料
型號: SN74ACT3638PQ
廠商: Texas Instruments, Inc.
英文描述: Low-Voltage Quad 2-Input OR Gate with 5V-Tolerant Inputs; Package: TSSOP-14; No of Pins: 14; Container: Tape and Reel; Qty per Container: 2500
中文描述: 512】32】2時鐘雙向先入先出存儲器
文件頁數(shù): 22/30頁
文件大?。?/td> 461K
代理商: SN74ACT3638PQ
SN74ACT3638
512
×
32
×
2
CLOCKED BIDIRECTIONAL FIRST-IN, FIRST-OUT MEMORY
SCAS228D – JUNE 1992 – REVISED APRIL 1998
22
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
ìììì
ìììì
CLKA
IRA
tsu(RM)
th(RM)
RTM
tsk1
FIFO1 Filled to First Retransmit Word
CLKB
tpd(C-IR)
1
2
One or More FIFO1 Write Locations
Available
tsk1 is the minimum time between a rising CLKB edge and a rising CLKA edge for IRA to transition high in the next CLKA cycle. If the time
between the rising CLKB edge and rising CLKA edge is less than tsk1, then IRA may transition high one CLKA cycle later than shown.
Figure 19. IRA Timing From the End of Retransmit Mode When One or More
FIFO1 Write Locations Are Available
ìììì
ìììì
CLKA
AFA
tsu(RM)
th(RM)
RTM
tsk2
(512 – Y1) or More Words Past First Retransmit Word
CLKB
tpd(C-AE)
1
2
(Y1+ 1) or More Write Locations Available
tsk2 is the minimum time between a rising CLKB edge and a rising CLKA edge for AFA to transition high in the next CLKA cycle. If the time
between the rising CLKB edge and rising CLKA edge is less than tsk2, then AFA may transition high one CLKA cycle later than shown.
NOTE A: Y is the value loaded in the almost-full flag offset register.
Figure 20. AFA Timing From the End of Retransmit Mode When (Y1 + 1) or More
FIFO1 Write Locations Are Available
相關(guān)PDF資料
PDF描述
SN74ACT3641PCB Low-Voltage Quad 2-Input OR Gate with 5V-Tolerant Inputs; Package: SOEIAJ-14; No of Pins: 14; Container: Tape and Reel; Qty per Container: 2000
SN74ACT3641PQ Low-Voltage Quad 2-Input OR Gate with 5V-Tolerant Inputs, Pb-free; Package: SOEIAJ-14; No of Pins: 14; Container: Tape and Reel; Qty per Container: 2000
SN74ACT3651PCB Low-Voltage CMOS Octal Transparent Latch; Package: TSSOP 20 LEAD; No of Pins: 20; Container: Rail; Qty per Container: 75
SN74ACT3651PQ Low-Voltage CMOS Octal Transparent Latch; Package: TSSOP 20 LEAD; No of Pins: 20; Container: Tape and Reel; Qty per Container: 2500
SN74ACT373DB OCTAL D-TYPE TRANSPARENT LATCHES WITH 3-STATE OUTPUTS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SN74ACT3641-15PCB 功能描述:先進(jìn)先出 1024 x 36 synch 先進(jìn)先出 Memory RoHS:否 制造商:IDT 電路數(shù)量: 數(shù)據(jù)總線寬度:18 bit 總線定向:Unidirectional 存儲容量:4 Mbit 定時類型:Synchronous 組織:256 K x 18 最大時鐘頻率:100 MHz 訪問時間:10 ns 電源電壓-最大:3.6 V 電源電壓-最小:6 V 最大工作電流:35 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-80 封裝:
SN74ACT3641-15PQ 功能描述:先進(jìn)先出 1024 x 36 synch 先進(jìn)先出 Memory RoHS:否 制造商:IDT 電路數(shù)量: 數(shù)據(jù)總線寬度:18 bit 總線定向:Unidirectional 存儲容量:4 Mbit 定時類型:Synchronous 組織:256 K x 18 最大時鐘頻率:100 MHz 訪問時間:10 ns 電源電壓-最大:3.6 V 電源電壓-最小:6 V 最大工作電流:35 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-80 封裝:
SN74ACT3641-20PCB 功能描述:先進(jìn)先出 1024 x 36 synch 先進(jìn)先出 Memory RoHS:否 制造商:IDT 電路數(shù)量: 數(shù)據(jù)總線寬度:18 bit 總線定向:Unidirectional 存儲容量:4 Mbit 定時類型:Synchronous 組織:256 K x 18 最大時鐘頻率:100 MHz 訪問時間:10 ns 電源電壓-最大:3.6 V 電源電壓-最小:6 V 最大工作電流:35 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-80 封裝:
SN74ACT3641-20PQ 功能描述:先進(jìn)先出 1024 x 36 synch 先進(jìn)先出 Memory RoHS:否 制造商:IDT 電路數(shù)量: 數(shù)據(jù)總線寬度:18 bit 總線定向:Unidirectional 存儲容量:4 Mbit 定時類型:Synchronous 組織:256 K x 18 最大時鐘頻率:100 MHz 訪問時間:10 ns 電源電壓-最大:3.6 V 電源電壓-最小:6 V 最大工作電流:35 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-80 封裝:
SN74ACT3641-30PCB 功能描述:先進(jìn)先出 1024 x 36 synch 先進(jìn)先出 Memory RoHS:否 制造商:IDT 電路數(shù)量: 數(shù)據(jù)總線寬度:18 bit 總線定向:Unidirectional 存儲容量:4 Mbit 定時類型:Synchronous 組織:256 K x 18 最大時鐘頻率:100 MHz 訪問時間:10 ns 電源電壓-最大:3.6 V 電源電壓-最小:6 V 最大工作電流:35 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-80 封裝: