74ALVCH32245
LOW VOLTAGE CMOS 32-BIT BUS TRANSCEIVER
(3-STATE) WITH 3.6V TOLERANTAT INPUTS AND OUTPUTS
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3.6V TOLERANT INPUTS AND OUTPUTS
HIGH SPEED:
tPD = 3.0ns (MAX.) at VCC = 3.0 to 3.6V
tPD = 3.7ns (MAX.) at VCC = 2.3 to 2.7V
POWER DOWN PROTECTION ON INPUTS
AND OUTPUTS
SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 24mA (MIN) at VCC = 3V
|IOH| = IOL = 8mA (MIN) at VCC = 2.3V
OPERATING VOLTAGE RANGE:
VCC(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
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ORDER CODES
PACKAGE
TRAY
LFBGA96
74ALVCH32245LB
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74ALVCH32245LBR
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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.
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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 C2MOS 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.
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LFBGA96
(Top and Bottom view)
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LOGIC DIAGRAM
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February 2002
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74ALVCH32245
PIN CONNECTION (Top view)
TERMINAL ASSIGNMENT
A
B
C
D
E
F
G
H
J
K
L
M
N
P
6
1A2
1A4
1A6
1A8
2A2
2A4
2A6
2A7
3A2
3A4
3A6
3A8
4A2
4A4
5
1A1
1A3
1A5
1A7
2A1
2A3
2A5
2A8
3A1
3A3
3A5
3A7
4A1
4A3
4
1G
GND
VCC
GND GND
VCC
GND
2G
3G
GND
VCC
GND GND
3
1DIR GND
VCC
GND GND
VCC
GND 2DIR 3DIR GND
VCC
2
1B1
1B3
1B5
1B7
2B1
2B3
2B5
2B8
3B1
3B3
1
1B2
1B4
1B6
1B8
2B2
2B4
2B6
2B7
3B2
3B4
INPUT AND OUTPUT EQUIVALENT CIRCUIT
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4A6
4A7
4A5
4A8
GND
4G
GND GND
VCC
GND 4DIR
3B5
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VCC
3B7
4B1
4B3
4B5
4B8
3B6
3B8
4B2
4B4
4B6
4B7
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PIN DESCRIPTION
SYMBOL
nDIR
nA1 to nA8
nB1 to nB8
nG
GND
VCC
2/9
TRUTH TABLE
NAME AND FUNCTION
Directional Control
Data Inputs/Outputs
Data Inputs/Outputs
Output Enable Inputs
Ground (0V)
Positive Supply Voltage
INPUTS
FUNCTION
nG
nDIR
L
L
H
L
H
X
X : Don‘t Care
Z : High Impedance
A BUS
B BUS
OUTPUT INPUT
INPUT
OUTPUT
Z
Z
OUTPUT
Yn
A=B
B=A
Z
74ALVCH32245
ABSOLUTE MAXIMUM RATINGS
Symbol
VCC
Parameter
Value
Unit
Supply Voltage
-0.5 to +4.6
V
VI
DC Input Voltage
-0.5 to +4.6
V
VO
DC Output Voltage (VCC = 0V)
VO
DC Output Voltage (High or Low State) (note 1)
-0.5 to +4.6
V
-0.5 to VCC + 0.5
- 50
V
mA
IIK
DC Input Diode Current
IOK
DC Output Diode Current (note 2)
- 50
mA
IO
DC Output Current
± 50
mA
ICC or IGND DC VCC or Ground Current per Supply Pin
PD
Power Dissipation
Tstg
Storage Temperature
TL
Lead Temperature (10 sec)
± 100
mA
400
mW
-65 to +150
°C
300
°C
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied
1) IO absolute maximum rating must be observed
2) VO < GND
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RECOMMENDED OPERATING CONDITIONS
Symbol
VCC
ro
Parameter
Input Voltage
VO
Output Voltage (VCC = 0V)
VO
Output Voltage (High or Low State)
so
IOH, IOL
High or Low Level Output Current (VCC = 3.0 to 3.6V)
IOH, IOL
High or Low Level Output Current (VCC =2.7V)
IOH, IOL
High or Low Level Output Current (VCC = 2.3 to 2.5V)
Top
dt/dv
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Supply Voltage (note 1)
VI
(s)
Operating Temperature
t
c
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Input Rise and Fall Time (note 2)
1) Truth Table guaranteed: 1.2V to 3.6V
2) VIN from 0.8V to 2V at VCC = 3.0V
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Value
Unit
1.65 to 3.6
V
0 to 3.6
V
0 to 3.6
V
0 to VCC
V
± 24
mA
± 12
mA
±8
mA
-40 to +85
°C
0 to 10
ns/V
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74ALVCH32245
DC SPECIFICATIONS
Test Condition
Symbol
VIH
VIL
Parameter
Value
-40 to 85 °C
VCC
(V)
Min.
High Level Input Voltage
1.65 to 1.95
0.65VCC
1.7
2.0
Low Level Input Voltage
2.3 to 2.7
2.7 to 3.6
1.65 to 1.95
Max.
VOL
High Level Output Voltage
Low Level Output Voltage
IO=-100 µA
VCC-0.2
1.65
IO=-4 mA
1.2
2.3
IO=-8 mA
1.7
2.7
IO=-12 mA
2.2
3.0
IO=-12 mA
2.4
3.0
IO=-24 mA
2.2
1.65 to 3.6
IO=100 µA
1.65
IO=4 mA
2.3
IO=8 mA
2.7
IO=12 mA
3.0
IO=12 mA
1.65 to 3.6
II(HOLD)
Input Leakage Current
3.6
Input Hold Current
1.65
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High Impedance Output
Leakage Current
Power Off Leakage Current
ICC
Quiescent Supply Current
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∆ICC
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ICC incr. per Input
Pr
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0.2
0.45
0.7
0.4
IO=24 mA
0.55
±5
so
V
0.4
VI = VCC or GND
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µA
VI = 0.58V
25
VI = 1.07V
-25
2.3
VI = 0.7V
45
2.3
VI = 1.7V
-45
3
VI = 0.8V
75
3
VI = 2V
-75
3.6
VI = 0 to 3.6V
± 500
3.6
VO = VCC or GND
± 10
µA
0
VI or VO = 0 to 3.6V
20
µA
3.6
VI = VCC or GND, IO = 0
40
µA
3.0 to 3.6
VIH = VCC-0.6V
other VI= VCC or GND
750
µA
1.65
uc
V
0.7
0.8
3.0
II
V
0.35VCC
2.3 to 2.7
2.7 to 3.6
VOH
Unit
(t s)
µA
74ALVCH32245
AC ELECTRICAL CHARACTERISTICS
Test Condition
Symbol
tPLH tPHL
tPZL tPZH
tPLZ tPHZ
Parameter
Propagation Delay Time
Output Enable Time
Output Disable Time
Value
-40 to 85 °C
VCC
(V)
CL
(pF)
Min.
Max.
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
30
50
50
30
50
50
30
50
50
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
3.7
3.6
3.0
5.7
5.4
4.4
5.2
4.6
4.1
CAPACITIVE CHARACTERISTICS
Test Condition
Symbol
Parameter
Value
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Min.
P
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Input Capacitance
3.3
VI = 0V or VCC
COUT
Output Capacitance
3.3
CPD
Power Dissipation Capacitance
(note 1)
2.5
3.3
VI = 0V or VCC
fIN = 10MHz
VI = 0V or VCC
CIN
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TA = 25 °C
VCC
(V)
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Typ.
Unit
ns
ns
ns
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Unit
Max.
4
pF
8
pF
22
28
pF
1) CPD 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. ICC(opr) = CPD x VCC x fIN + ICC/32 (per
circuit)
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74ALVCH32245
TEST CIRCUIT
TEST
SWITCH
tPLH, tPHL
Open
tPZL, tPLZ (VCC = 3.0 to 3.6V)
6V
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tPZL, tPLZ (VCC = 2.3 to 2.7V)
2VCC
tPZH, tPHZ
GND
RT = ZOUT of pulse generator (typically 50Ω)
TEST CIRCUIT AND WAVEFORM SYMBOL VALUE
3.0 to 3.6V
2.7V
VIH
2.7V
2.7V
VM
1.5V
VX
VOL +0.3V
VY
VOH -0.3V
CL
50pF
RL=R1
500Ω
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