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PI74AVC16835A Datasheet

  • PI74AVC16835A

  • 18-Bit Buffer/Driver

  • 397.33KB

  • 9頁

  • ETC

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PI74AVC16835
18-Bit Universal Bus Driver
with 3-State Outputs
Product Features
聲 Very high-speed, low-noise universal bus driver with
embedded resistor outputs
聲 Meets PC133 SDRAM Registered DIMM specification
聲 Implements output impedance control for low-noise and
heavy-load applications
聲 Fast Propagation Delay:
2.5ns max. for 50pF test load
聲 V
CC
= 3.3V or 2.5V or 1.8V
聲 Packages available:
聳 56-pin 240 mil wide plastic TSSOP (A)
聳 56-pin 173 mil wide plastic TVSOP (K)
Product Description
Pericom Semiconductor聮s PI74AVC series of logic circuits
are produced using the Company聮s advanced 0.35 micron CMOS
technology, achieving industry leading speed.
The 18-bit PI74AVC16835 universal bus driver is designed for 1.8V
to 3.6V Vcc operation.
Data flow from A to Y is controlled by Output Enable (OE). The device
operates in the transparent mode when LE is HIGH. The A data is
latched if CLK is held at a high or low logic level. If LE is LOW, the
A-bus is stored in the latch/flip-flop on the low-to-high transition of
CLK. When OE is HIGH, the outputs are in the high-impedance state.
The PI74AVC16835 bus driver is designed to drive an array of 133
MHz synchronous memory chips, with minimal undershoot/
overshoot noise, and to meet the input signal rise/fall time requirement
of memory chips.
The output drivers of this part have an embedded series-resistor. For
DIMM module design, no external series termination resistors near
the buffer drivers or any other termination resistors are required. This
feature simplifies DIMM module layout design, and results in cost
savings.
Product Pin Configuration
NC
NC
Y1
GND
Y2
Y3
VCC
Y4
Y5
Y6
GND
Y7
Y8
Y9
Y10
Y11
Y12
GND
Y13
Y14
Y15
VCC
Y16
Y17
GND
Y18
OE
LE
1
2
3
4
5
6
7
8
9
10
11
12
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
GND
NC
A1
GND
A2
A3
VCC
A4
A5
A6
GND
A7
A8
A9
A10
A11
A12
GND
A13
A14
A15
VCC
A16
A17
GND
A18
CLK
GND
13
56-Pin
A, K
1
PS8373D
08/03/99

PI74AVC16835A 產(chǎn)品屬性

  • 35

  • 集成電路 (IC)

  • 邏輯 - 通用總線函數(shù)

  • 74AVC

  • 通用總線驅(qū)動器

  • -

  • 18 位

  • 12mA，12mA

  • 1.65 V ~ 3.6 V

  • -40°C ~ 85°C

  • 表面貼裝

  • 56-TFSOP（0.240"，6.10mm 寬）

  • 56-TSSOP

  • 管件

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