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參數(shù)資料
型號: IDT72271LA15PF
廠商: IDT, Integrated Device Technology Inc
文件頁數(shù): 20/27頁
文件大?。?/td> 0K
描述: IC FIFO 16384X18 LP 15NS 64QFP
標(biāo)準(zhǔn)包裝: 90
系列: 7200
功能: 同步
存儲容量: 288K(16K x 18)
數(shù)據(jù)速率: 67MHz
訪問時間: 15ns
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: 64-LQFP
供應(yīng)商設(shè)備封裝: 64-TQFP(14x14)
包裝: 托盤
其它名稱: 72271LA15PF
27
2009 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice
3.3 VOLT CMOS SuperSync FIFO
16,384 x 9
32,768 x9
IDT72261LA
IDT72271LA
IDT, IDT logo are registered trademarks of Integrated Device Technology, Inc.The SuperSync FIFO is a trademark of Integrated Device Technology, Inc.
COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES
ADDENDUM
DIFFERENCES BETWEEN THE IDT72261LA/72271LA AND IDT72261L/72271L
IDT has improved the performance of the IDT72261/72271 SuperSync FIFOs. The new versions are designated by the “LA” mark. The LA part
is pin-for-pin compatible with the original “L” version. Some difference exist between the two versions. The following table details these differences.
Item
NEW PART
OLD PART
Comments
IDT72261LA
IDT72261L
IDT72271LA
IDT72271L
Pin #3
DC (Don’t Care) - There is
FS (Frequency Select)
In the LA part this pin must be tied
no restriction on WCLK and
to either VCC or GND and must
RCLK. See note 1.
not toggle after reset.
First Word Latency
60ns(2) + tREF + 1 TRCLK(4)
tFWL
1 = 10*Tf
(3)
+ 2TRCLK(4)(ns)
First word latency in the LA part
(IDT Standard Mode)
is a fixed value, independent of
the frequency of RCLK or WCLK.
First Word Latency
60ns(2) + tREF + 2 TRCLK(4)
tFWL
2 = 10*Tf
(3)
+ 3TRCLK(4)(ns)
First word latency in the LA part
(FWFT Mode)
is a fixed value, independent of
the frequency of RCLK or WCLK.
Retransmit Latency
60ns(2) + tREF + 1 TRCLK(4)
tRTF
1 = 14*Tf
(3)
+ 3TRCLK(4)(ns)
Retransmit latency in the LA part
(IDT Standard Mode)
is a fixed value, independent of
the frequency of RCLK or WCLK.
Retransmit Latency
60ns(2) + tREF + 2 TRCLK(4)
tRTF
2 = 14*Tf
(3)
+ 4TRCLK(4)(ns)
Retransmit latency in the LA part
(FWFT Mode)
is a fixed value, independent of
the frequency of RCLK or WCLK.
ICC1
75mA
150mA
Active supply current
ICC2
20mA
15mA
Standby current
Typical ICC1(5)
15 + 1.85*fS + 0.02*CL*fS(mA)
Not Given
Typical ICC1 Current calculation
NOTES:
1. WCLK and RCLK can vary independently and can be stopped. There is no restriction on operating WCLK and RCLK.
2. This is tSKEW3.
3. Tf is the period of the ‘selected clock’.
4. TRCLK is the cycle period of the read clock.
5. Typical ICC1 is based on VCC = 5V, tA = 25C, fS = WCLK frequency = RCLK frequency (in MHz using TTL levels), data switching at fS/2, CL = Capacitive Load (in pF).
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IDT72271LA15TF 功能描述:IC FIFO 16384X18 LP 15NS 64QFP RoHS:否 類別:集成電路 (IC) >> 邏輯 - FIFO 系列:7200 標(biāo)準(zhǔn)包裝:90 系列:7200 功能:同步 存儲容量:288K(16K x 18) 數(shù)據(jù)速率:100MHz 訪問時間:10ns 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:64-LQFP 供應(yīng)商設(shè)備封裝:64-TQFP(14x14) 包裝:托盤 其它名稱:72271LA10PF
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