74ALVCH32245
LOW VOLTAGE CMOS 32-BIT BUS TRANSCEIVER
(3-STATE) WITH 3.6V TOLERANTAT INPUTS AND OUTPUTS
s
s
s
s
s
s
s
s
s
3.6V TOLERANT INPUTS AND OUTPUTS
HIGH SPEED:
t
PD
= 3.0ns (MAX.) at V
CC
= 3.0 to 3.6V
t
PD
= 3.7ns (MAX.) at V
CC
= 2.3 to 2.7V
POWER DOWN PROTECTION ON INPUTS
AND OUTPUTS
SYMMETRICAL OUTPUT IMPEDANCE:
|I
OH
| = I
OL
= 24mA (MIN) at V
CC
= 3V
|I
OH
| = I
OL
= 8mA (MIN) at V
CC
= 2.3V
OPERATING VOLTAGE RANGE:
V
CC
(OPR) = 1.65V to 3.6V
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 32245
BUS HOLD PROVIDED ON BOTH SIDE
LATCH-UP PERFORMANCE EXCEEDS
300mA
ESD PERFORMANCE:
HBM > 2000V (MIL STD 883 method 3015);
MM > 200V
LFBGA96
(Top and Bottom view)
ORDER CODES
PACKAGE
LFBGA96
TRAY
74ALVCH32245LB
T&R
74ALVCH32245LBR
DESCRIPTION
The 74ALVCH32245 is a low voltage CMOS
32-BIT
BUS
TRANSCEIVER
(3-STATE)
fabricated with sub-micron silicon gate and
five-layer metal wiring C
2
MOS technology. It is
ideal for 1.65 to 3.6 V applications; it can be
interfaced to 3.6V signal enviroment for both
inputs and outputs.
LOGIC DIAGRAM
This IC is intended for two-ways asynchronous
communication between data buses: the direction
of data trasmission is determined by DIR input.
Any nG contol output governs eight BUS
TRANSCEIVERS. Output Enable input (nG) tied
together gives full 32-bit operation. When nG is
LOW, the output are enabled. When nG is HIGH,
the output are in high impedance state so that the
buses are effectively isolated. Bus hold on data
inputs is provided in order to eliminate the need for
external pull-up or pull-down resistor.
All inputs and outputs are equipped with
protection circuits against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.
February 2002
1/9
74ALVCH32245
ABSOLUTE MAXIMUM RATINGS
Symbol
V
CC
V
I
V
O
V
O
I
IK
I
OK
I
O
Supply Voltage
DC Input Voltage
DC Output Voltage (V
CC
= 0V)
DC Output Voltage (High or Low State) (note 1)
DC Input Diode Current
DC Output Diode Current (note 2)
DC Output Current
Parameter
Value
-0.5 to +4.6
-0.5 to +4.6
-0.5 to +4.6
-0.5 to V
CC
+ 0.5
- 50
- 50
±
50
±
100
400
-65 to +150
300
Unit
V
V
V
V
mA
mA
mA
mA
mW
°C
°C
I
CC
or I
GND
DC V
CC
or Ground Current per Supply Pin
P
D
Power Dissipation
T
stg
T
L
Storage Temperature
Lead Temperature (10 sec)
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied
1) I
O
absolute maximum rating must be observed
2) V
O
< GND
RECOMMENDED OPERATING CONDITIONS
Symbol
V
CC
V
I
V
O
V
O
I
OH
, I
OL
I
OH
, I
OL
I
OH
, I
OL
T
op
dt/dv
Supply Voltage (note 1)
Input Voltage
Output Voltage (V
CC
= 0V)
Output Voltage (High or Low State)
High or Low Level Output Current (V
CC
= 3.0 to 3.6V)
High or Low Level Output Current (V
CC
=2.7V)
High or Low Level Output Current (V
CC
= 2.3 to 2.5V)
Operating Temperature
Input Rise and Fall Time (note 2)
Parameter
Value
1.65 to 3.6
0 to 3.6
0 to 3.6
0 to V
CC
±
24
±
12
±
8
-40 to +85
0 to 10
Unit
V
V
V
V
mA
mA
mA
°C
ns/V
1) Truth Table guaranteed: 1.2V to 3.6V
2) V
IN
from 0.8V to 2V at V
CC
= 3.0V
3/9
74ALVCH32245
AC ELECTRICAL CHARACTERISTICS
Test Condition
Symbol
Parameter
V
CC
(V)
2.3 to 2.7
2.7
3.0 to 3.6
2.3 to 2.7
2.7
3.0 to 3.6
2.3 to 2.7
2.7
3.0 to 3.6
C
L
(pF)
30
50
50
30
50
50
30
50
50
Value
-40 to 85 °C
Min.
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
Max.
3.7
3.6
3.0
5.7
5.4
4.4
5.2
4.6
4.1
ns
Unit
t
PLH
t
PHL
Propagation Delay Time
t
PZL
t
PZH
Output Enable Time
ns
t
PLZ
t
PHZ
Output Disable Time
ns
CAPACITIVE CHARACTERISTICS
Test Condition
Symbol
Parameter
V
CC
(V)
3.3
3.3
2.5
3.3
V
I
= 0V or V
CC
V
I
= 0V or V
CC
f
IN
= 10MHz
V
I
= 0V or V
CC
Value
T
A
= 25 °C
Min.
Typ.
4
8
22
28
Max.
pF
pF
pF
Unit
C
IN
C
OUT
C
PD
Input Capacitance
Output Capacitance
Power Dissipation Capacitance
(note 1)
1) C
PD
is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. I
CC(opr)
= C
PD
x V
CC
x f
IN
+ I
CC
/32 (per
circuit)
5/9
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