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参数资料
| 型号： | 72821L15TF8 |
| 厂商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分类： | FIFO |
| 英文描述： | 1K X 9 BI-DIRECTIONAL FIFO, 10 ns, PQFP64 |
| 封装： | SLIM, TQFP-64 |
| 文件页数： | 4/16页 |
| 文件大小： | 211K |
| 代理商： | 72821L15TF8 |
12
IDT72801/728211/72821/72831/72841/72851 DUAL CMOS SyncFIFOTM
DUAL 256 x 9, DUAL 512 x 9, DUAL 1K x 9, DUAL 2K x 9, DUAL 4K x 9, DUAL 8K x 9
COMMERCIAL AND INDUSTRIAL
TEMPERATURERANGES
Figure 10. Programmable Full Flag Timing
NOTES:
1. m =
PAF offset.
2.
(256-m) words for the IDT72801; (512-m) words the IDT72811; (1,024-m) words for the IDT72821; (2,048-m) words for the IDT72831; (4,096-m) words for the IDT72841; or (8,192-m)
words for the IDT72851.
3. tSKEW2 is the minimum time between a rising RCLKA (RCLKB) edge and a rising WCLKA (WCLKB) edge for
PAFA (PAFB) to change during that clock cycle. If the time between the
rising edge of RCLKA (RCLKB) and the rising edge of WCLKA (WCLKB) is less than tSKEW2, then
PAFA (PAFB) may not change state until the next WCLKA (WCLKB) rising edge.
4. If a write is performed on this rising edge of the write clock, there will be Full - (m-1) words in FIFO A (B) when
PAFA (PAFB) goes LOW.
tENS
tENH
tENS
tENH
tENS
tENH
WCLKA
(WCLKB)
WENA1
(
WENB1)
WENA2 (WENB2)
(If Applicable)
PAFA
(
PAFB)
RCLKA (RCLKB)
RENA1, RENA2
(
RENB1, RENB2)
(4)
(1)
tPAF
Full - (m+1) words in FIFO
Full - m words in FIFO
(2)
tCLKH
tCLKL
tSKEW2
(3)
tPAF
3034 drw 11
WCLKA (WCLKB)
WENA1
(
WENB1)
WENA2 (WENB2)
(If Applicable)
PAEA,
PAEB
RCLKA (RCLKB)
RENA1, RENA2
(
RENB1, RENB2)
tENS
tENH
tENS
tENH
tSKEW2
(2)
tENS
tENH
tPAE
(3)
(1)
n words in FIFO
n+1 words in FIFO
tCLKH
tCLKL
3034 drw 12
NOTES:
1.
n =
PAE offset.
2.
tSKEW2 is the minimum time between a rising WCLKA (WCLKB) edge and a rising RCLKA (RCLKB) edge for
PAEA (PAEB) to change during that clock cycle. If the time between the
rising edge of WCLKA (WCLKB) and the rising edge of RCLKA (RCLKB) is less than tSKEW2, then
PAEA (PAEB) may not change state until the next RCLKA (RCLKB) rising edge.
3.
If a read is performed on this rising edge of the read clock, there will be Empty + (n-1) words in FIFO A (B) when
PAEA (PAEB) goes LOW.
Figure 11. Programmable Empty Flag Timing
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 72821L15TFI8 | 制造商:Integrated Device Technology Inc 功能描述:FIFO SYNC QUAD DEPTH/WIDTH BI-DIR 1KX9X2 64TQFP - Tape and Reel |
| 72821L25PF | 功能描述:先进先出 RoHS:否 制造商:IDT 电路数量: 数据总线宽度:18 bit 总线定向:Unidirectional 存储容量:4 Mbit 定时类型:Synchronous 组织:256 K x 18 最大时钟频率:100 MHz 访问时间:10 ns 电源电压-最大:3.6 V 电源电压-最小:6 V 最大工作电流:35 mA 最大工作温度:+ 85 C 封装 / 箱体:TQFP-80 封装: |
| 72821L25PF8 | 功能描述:先进先出 RoHS:否 制造商:IDT 电路数量: 数据总线宽度:18 bit 总线定向:Unidirectional 存储容量:4 Mbit 定时类型:Synchronous 组织:256 K x 18 最大时钟频率:100 MHz 访问时间:10 ns 电源电压-最大:3.6 V 电源电压-最小:6 V 最大工作电流:35 mA 最大工作温度:+ 85 C 封装 / 箱体:TQFP-80 封装: |
| 72821L25PFI | 功能描述:先进先出 RoHS:否 制造商:IDT 电路数量: 数据总线宽度:18 bit 总线定向:Unidirectional 存储容量:4 Mbit 定时类型:Synchronous 组织:256 K x 18 最大时钟频率:100 MHz 访问时间:10 ns 电源电压-最大:3.6 V 电源电压-最小:6 V 最大工作电流:35 mA 最大工作温度:+ 85 C 封装 / 箱体:TQFP-80 封装: |
| 72821L25PFI8 | 制造商:Integrated Device Technology Inc 功能描述:FIFO Mem Sync Quad Depth/Width Bi-Dir 1K x 9 x 2 64-Pin TQFP T/R 制造商:Integrated Device Technology Inc 功能描述:FIFO SYNC QUAD DEPTH/WIDTH BI-DIR 1KX9X2 64TQFP - Tape and Reel |
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