PO74G164245A
1.65v-3.6v, 16-bit Dual Supply Level Shifting
Bidirectional Transceiver with 3 state outputs
02/01/09
74 Series GHz Logic
FEATURES:
DESCRIPTION:
Potato Semiconductor’s PO74G164245A is designed
for world top performance using submicron CMOS
technology to achieve 1GHz TTL /CMOS output
frequency.This Octal bus buffer gate is designed for
1.65v-3.6v, 16-bit Dual Supply Level ShiftingBidirec-
tional Transceiver with 3 state outputs operation.
. Patented technology
. Operating frequency up to 1GHz with 2pf load
. VCC Operates from 1.65V to 3.6V
. Low input capacitance: 5pf typical
. Available in 48pin TSSOP package
Contains two separate supply rails: B port (VCCB)
must set higher voltage (equal) then A port
(VCCA).This arrangement permits translation from a
1.8-2.5V to 3.3V environment.
. Comparator A inputs for accuracy signals
The PO74G164245A features independent 16-bit
Bidirectional Transceiver with 3 state outputs. Each
output is disabled when the associated output-
enable(OE) input is high.
Pin Configuration
Logic Block Diagram
VCCA1
VCCA2
1
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
1OE
1A0
1DIR
1B0
2
1DIR
2DIR
44k
(Typ.)
44k
3
1A1
1B1
1OE
2OE
(Typ.)
4
GND
1A2
GND
1B2
5
1A0
1A1
1A2
1A3
1A4
1A5
1A6
1A7
2A0
6
1A3
1B3
1B0
1B1
1B2
1B3
1B4
1B5
1B6
1B7
2B0
2B1
2B2
2B3
2B4
2B5
2B6
2B7
7
VCCA1
1A4
VCCB1
1B4
8
2A1
2A2
2A3
2A4
2A5
9
1A5
1B5
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
GND
1A6
GND
1B6
1B7
1A7
2B0
2A0
2B1
2A1
GND
2B2
GND
2B2
2B3
2A3
VCCB2
2B4
VCCA2
2A4
2B5
2A5
2A6
2A7
GND
2B6
GND
2A6
44k
(Typ.)
44k
(Typ.)
2B7
2A7
2DIR
2OE
Pin Description
Truth Table
Inputs
Outputs
Pin Name
Description
xOE
L
xDIR
x
O
E
3-State Output Enable Inputs (Active LOW
)
L
H
X
Bus B Data to Bus A
Bus A Data to Bus B
Z
xDIR
Direction Control Input
Side A Inputs or 3-State Inputs
Side B Outputs or 3-State Outputs
Ground
L
H
XAX
xDIR
VCCAx
0V
Comparator InputAx
disable
XBX
X
L
GND
VCC
X
disable
1
Power
H
>0V
Enable
Copyright © Potato Semiconductor Corporation