PO74G16245B
1.2v-3.6v, 16-bit Bidirectional Transceiver with 3 state outputs
74 Series GHz Logic
FEATURES:
. Patented technology
. Operating frequency up to 1GHz with 2pf load
. Operating frequency up to 730MHz with 5pf load
. Operating frequency up to 320MHz with 15pf load
. Operating frequency up to 75MHz with 50pf load
. VCC Operates from 1.2V to 3.6V
. Propagation delay < 1.65ns max with 15pf load
. Low input capacitance: 5pf typical
. Available in 48pin TSSOP package
12/18/08
DESCRIPTION:
Potato Semiconductor’s PO74G16245B is designed for
world top performance using submicron CMOS
technology to achieve 1GHz TTL /CMOS output
frequency with less than 1.65ns propagation delay.
This Octal bus buffer gate is designed for 1.2-V to
3.6-V V
CC
operation.
The
PO74G16245B
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
1DIR
1B0
1B1
GND
1B2
1B3
VCC
1B4
1B5
GND
1B6
1B7
2B0
2B1
GND
2B2
2B3
VCC
2B4
2B5
GND
2B6
2B7
2DIR
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
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
1A1
GND
1A2
1A3
VCC
1A4
1A5
GND
1A6
1A7
2A0
2A1
GND
2B2
2A3
VCC
2A4
2A5
GND
2A6
2A7
2OE
Logic Block Diagram
1DIR
1OE
1A0
1B0
1A1
1B1
1A2
1B2
1A3
1B3
1A4
1B4
1A5
1B5
1A6
1B6
1A7
1B7
2A7
2B7
2A6
2B6
2A5
2B5
2A4
2B4
2A3
2B3
2A2
2B2
2A1
2B1
2A0
2B0
2DIR
2OE
Pin Description
Pin Name
xOE
xDIR
X
A
X
X
B
X
Truth Table
Inputs
xOE
L
L
H
xDIR
L
H
X
Bus B Data to Bus A
Bus A Data to Bus B
Z
Outputs
De s cription
3- State Output Enable Inputs (Active LOW)
Direction Control Input
Side A Inputs or 3- State Inputs
Side B Outputs or 3- State Outputs
Ground
Power
GND
V
CC
1
Copyright
© Potato Semiconductor Corporation
PO74G16245B
1.2v-3.6v, 16-bit Bidirectional Transceiver with 3 state outputs
74 Series GHz Logic
12/18/08
Maximum Ratings
Description
Storage Temperature
Operation Temperature
Operation Voltage
Input Voltage
Output Voltage
Max
-65 to 150
-40 to 85
-0.5 to +4.6
-0.5 to +Vcc
-0.5 to Vcc+0.5
Unit
°C
°C
V
V
V
Note:
stresses greater than listed under
Maximum
Ratings
may
cause
permanent damage to the device. This
is a stress rating only and functional
operation of the device at these or any
other conditions above those indicated
in the operational sections of this
specification is not implied. Exposure
to absolute maximum rating conditions
for extended periods may affect
reliability specification is not implied.
DC Electrical Characteristics
V
CC
Supply Voltage
O perating
(Over the Operating Range, T
A
= –40°C +85°C)
M in.
1.4
1.2
V
CC
0.65 x V
CC
0.65 x V
CC
1.7
2
GN D
0.35 x V
CC
0.35 x V
CC
0.7
0.8
0
3.6
V
CC
3.6
–4
–6
– 12
– 24
4
6
12
24
5
–40
85
ns/V
°C
mA
V
M ax.
3.6
Units
Data retention only
V
CC
= 1.2V
V
IH
High- level Input Voltage
V
CC
= 1.4V to 1.6V
V
CC
= 1.65V to 1.95V
V
CC
= 2.3V to 2.7V
V
CC
= 3V to 3.6V
V
CC
= 1.2V
V
CC
= 1.4V to 1.6V
V
IL
Low- level Input Voltage
V
CC
= 1.65V to 1.95V
V
CC
= 2.3V to 2.7V
V
CC
= 3V to 3.6V
V
I
V
O
Input Voltage
O utput Voltage
Active State
3- State
V
CC
= 1.4V to 1.6V
0
0
I
OH
High- level output current
V
CC
= 1.65V to 1.95V
V
CC
= 2.3V to 2.7V
V
CC
= 3V to 3.6V
V
CC
= 1.4V to 1.6V
V
CC
= 1.65V to 1.95V
V
CC
= 2.3V to 2.7V
V
CC
= 3V to 3.6V
I
OL
Low- level output current
ΔtΔ
v
T
A
Input transition rise or fall rate
O perating free- air temperature
V
CC
= 1.4V to 3.6V
2
Copyright
© Potato Semiconductor Corporation
PO74G16245B
1.2v-3.6v, 16-bit Bidirectional Transceiver with 3 state outputs
74 Series GHz Logic
12/18/08
DC Electrical Characteristics
Parame te rs
V
O H
I
O HS
= –4mA
I
O HS
= –6mA
I
O HS
= –12mA
I
O HS
= –24mA
I
O LS
= 4mA
V
O L
I
O LS
= 6mA
I
O LS
= 12mA
I
O LS
= 24mA
I
I
I
O Z
I
C C
C
I
C
O
Control Inputs
Data Inputs
Outputs
V
O
= V
C C
or GND
V
I
= V
C C
or GND
V
O
= V
C C
or GND
V
I
= V
C C
or GND
V
I
= V
C C
or GND
(Over the Operating Range, T
A
= –40°C +85°C)
Te s t Conditions
(1)
V
IH
= 0.91V
V
IH
= 1.07V
V
IH
= 1.7V
V
IH
= 2V
V
IL
= 0.49V
V
IL
= 0.57V
V
IL
= 0.7V
V
IL
= 0.8V
V
CC
1. 4 V
1.65V
2.3V
3V
1.4V
1. 6 5 V
2 . 3V
3V
3.6V
3.6V
M in.
1.05
1. 2
1. 7 5
2.0
Typ.
M ax.
Units
0.4
0.45
0.55
0.8
± 2.5
± 10
±350
3.5
5
5
V
µ
A
I
O
= 0
3.6V
pF
Notes:
1. Typical values are measured at T
A
= 25°C.
3
Copyright
© Potato Semiconductor Corporation
PO74G16245B
1.2v-3.6v, 16-bit Bidirectional Transceiver with 3 state outputs
74 Series GHz Logic
12/18/08
Switching Characteristics
Parame te rs
t
pd
t
en
t
dis
fmax CL=2pf
fmax CL=5pf
fmax CL=15pf
fmax CL=50pf
From
(Input)
A or B
OE
OE
A or B
A or B
A or B
A or B
To
(Output)
B or A
B or A
B or A
B or A
B or A
B or A
B or A
V
CC
= 1.2V
Typ.
3.5
8.4
8.4
V
CC
= 1.5V
± 0.1V
Max
3.5
9.6
9.6
270
150
100
45
V
CC
= 1.8V
± 0.15V
Max
2.9
7.0
7.0
300
150
130
50
V
CC
= 2.5V
± 0.2V
Max
1.85
4.3
4.3
685
390
220
70
V
CC
= 3.3V
± 0.3V
Max
1.65
3.5
3.5
1000
730
320
75
Units
ns
Mhz
Operating Characteristics,
Parame te rs
C
pd
Power Dissipation
Capacitance
T
A
= 25°C
Te s t Conditions
C
L
= 0pF,
f = 10 MHz
V
CC
= 1.2V
Typical
18.5
V
CC
= 1.8V
± 0.15V
Typical
20
V
CC
= 2.5V
± 0.2V
Typical
22
V
CC
= 3.3V
± 0.3V
Typical
26
Units
pF
4
Copyright
© 2005-2006, Potato Semiconductor Corporation
PO74G16245B
1.2v-3.6v, 16-bit Bidirectional Transceiver with 3 state outputs
74 Series GHz Logic
12/18/08
Test Waveforms
Test Circuit
500
Ω
50
Ω
50pF
to
2pF
50
Ω
500
Ω
5
Copyright
© Potato Semiconductor Corporation
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