SGS Thomson Microelectronics 74VCX1632245TTR, 74VCX1632245TBR, 74VCX1632245TB, 74VCX1632245LBR, 74VCX1632245LB Datasheet
1/15September 2003
■ HIGH SPEED: t
PD
= 4.4ns (MAX.) a t TA=85°C
V
CCA
=3.0VV
CCB
=2.3V
■ LOW POWER DISSIPATION:
I
CCA=ICCB
=20µA(MAX.) at TA=85°C
■ SYMMETRICAL OUTPUT IMPEDANCE:
|I
OHA
|=I
OLA
= 8mA MIN at
V
CCA
=3.0VV
CCB
= 1.65V or 2.3V
|I
OHA
|=I
OLA
= 18m A MIN at
V
CCA
=2.3VV
CCB
= 1.65V)
■ BALANCED PROPAGATION DELAYS:
t
PLH
≅ t
PHL
■ POWER DOWN P ROTECTION ON I NP UTS
AND OUTPUTS
■ 26ΩSERIESRESISTOR ONASIDEOUTPUTS
■ OPERATING VOLTAGE RANGE:
V
CCA
(OPR) = 2.3V to 3.6V (1.2V Data
Retention)
V
CCB
(OPR) = 1.65V to 2.7V (1.2V Data
Retention)
■ PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 16245
■ LATCH-UP PERFORMANCE EXCEEDS
500mA (JESD 17)
■ ESD PERFORM ANCE :
HBM > 2000V (MIL STD 883 method 3015);
MM > 200V
DESCRIPTION
The 74VCX1632245 is a dual supply low voltage
CMOS 16-BIT BUS TRANSCEIVER fabricated
with sub-micron sil icon gate and five-layer metal
wiring C
2
MOS technology . Designed for use as an
interface between a 3.3V bus and a 2.5V or 1.8V
bus in a mixed 3.3V/1.8V,3.3V/2.5V and 2.5V/
1.8V supply syste ms, it achieves high speed
operation while maintaining the CMOS low power
dissipation.
This IC is intended f or two-way asynchronous
communication between data buses and the
direction of data transmission is determined by
nDIR inputs. The enable inputs nG
canbeusedto
disable the device so that the bus es are effectively
isolated. The A-port interfaces with the 3V bus, the
B-port with the 2.5V and 1.8 V bus.
All inputs are equipped with protection circuits
against static discharge, giving them 2KV ESD immunity and transient excess voltage. A ll floating
bus t erminals during High Z State must be held
HIGH or LOW.
74VCX1632245
16-BIT DUAL SUPPLY BUS TRANSCEIVER
LEVEL TRANSLATOR WITH A SIDE SERIES RESISTOR
ORDER CO DES
PACKAGE TRAY T & R
TSSOP48 74VCX1632245TTR
TFBGA54 74VCX1632245LB 74VCX1632245LBR
µTFBGA42 74VCX1632245TB 74VCX1632245TBR
TSSOP µTFBGATFBGA
LOGIC DIAGRAM
n = 1, 2
74VCX1632245
2/15
INPUT AND OUTPUT EQ UIVALENT CIRCUIT
PIN DESCRIPTION
TFBGA54 PIN N
o
µTFBGA42 PIN N
o
TSSOP PIN N
o
SYMBOL NAME AND FUNCTION
A3 B3 1 1DIR Directional Controls
J3 F3 24 2DIR Directional Controls
A6, B5, B6, C5,
C6, D5, D6, E5
A4, A5, A6, B5,
B6, C5, C6, D5
47, 46, 44, 43,
41, 40, 38, 37
1A1 to 1A8 Data Inputs/Outputs
E6, F5, F6,G5,
G6, H5, H6, J6
D6, E5, E6, F5,
F6,G4, G5, G6
36, 35, 33, 32,
30, 29, 27, 26
2A1 to 2A8 Data Inputs/Outputs
A1, B2, B1, C2,
C1, D2, D1, E2
A3, A2, A1, B2,
B1, C2, C1, D2
2, 3, 5, 6,
8, 9, 11, 12
1B1 to 1B8 Data Inputs/Outputs
E1, F2, F1,G2,
G1, H2, H1, J1
D1, E2, E1, F2,
F1,G3, G2, G1
13, 14, 16, 17,
19, 20, 22, 23
2B1 to 2B8 Data Inputs/Outputs
J4 F4 25 G
2 Output Enable Inputs
A4 B4 48 G
1 Output Enable Inputs
D3, D4, E3, E4,
F3, F4
C3, C4, E3, E4 4, 10, 15, 21,
28, 34, 39, 45
GND Ground (0V)
A2, A5, B3, B4,
H3, H4, J2, J5
- - NC No Connected
C4, G4 D4 42, 31 V
CCA
Positive Supply Voltage
C3,G3 D3 7,18 V
CCB
Positive Supply Voltage
74VCX1632245
3/15
PIN CONNECTION (top view for TSSOP, top through view for BGA )
TRUTH T ABLE
X=Don’t care; Z=High Impedance
INPUTS FUNCTION
OUTPUT
G
DIR A BUS B BUS
L L OUTPUT INPUT A = B
L H INPUT OUTPUT B = A
HXZZZ
TSSOP TFBGA
µTFBGA
74VCX1632245
4/15
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum Ratings are those value beyond which damage to the device may occur. Functional operation under these conditions is
not implied
RECOMMENDED OPERATING CONDITIONS
1) VINfrom0.8Vto 2.0V at VCC=3.0V
Symbol Parameter Value Unit
V
CCA
Supply Voltage
-0.5 to +4.6 V
V
CCB
Supply Voltage
-0.5 to +4.6 V
V
I
DC Input Voltage
-0.5 to +4.6 V
V
I/OA
DC I/O Voltage (Output disabled)
-0.5 to +4.6 V
V
I/OB
DC I/O Voltage (Output disabled)
-0.5 to +4.6 V
V
I/OA
DC I/O Voltage -0.5 to V
CCA
+ 0.5
V
V
I/OB
DC I/O Voltage -0.5 to V
CCB
+ 0.5
V
I
IK
DC Input Diode Current
− 20 mA
I
OK
DC Output Diode Current
− 50 mA
I
OA
DC Output Current
± 50 mA
I
OB
DC Output Current
± 50 mA
I
CCA
DC VCCor Ground Current
± 100 mA
I
CCB
DC VCCor Ground Current
± 100 mA
P
d
Power Dissipation
400 mW
T
stg
Storage Temperature
-65 to +150 °C
T
L
Lead Temperature (10 sec)
300 °C
Symbol Parameter Value Unit
V
CCA
Supply Voltage
2.3 to 3.6 V
V
CCB
Supply Voltage
1.65 to 2.7 V
V
I
Input Voltage (Dir, G) 0 to V
CCB
V
V
I/OA
I/O Voltage 0 to V
CCA
V
V
I/OB
I/O Voltage 0 to V
CCB
V
T
op
Operating Temperature
-40 to 85 °C
dt/dv Input Rise and Fall Time (note 1) 0 to 10 ns/V
74VCX1632245
5/15
DC SPEC IFICATION FOR V
CCA
(*) VCCrange = 3.3±0.3; 2.5±0.2V; 1.8±0.15V
Symbol Parameter
Test Condition Value
Unit
V
CCB
(*)
(V)
V
CCA
(*)
(V)
T
A
=25°C
-40 to 85 °C
Min. Typ. Max. Min. Max.
V
IHA
High Level Input
Voltage (An)
1.8 2.5 1.6 1.6
V1.8 3.3 2.0 2.0
2.5 3.3 2.0 2.0
V
ILA
Low Level Input
Voltage (An)
1.8 2.5 0.7 0.7
V1.8 3.3 0.8 0.8
2.5 3.3 0.8 0.8
V
OHA
High Level
Output Voltage
2.3 3.0
IO=-100µA
2.8 2.8
V
2.3 3.0
I
O
=-8mA
2.4 2.4
1.65 3.0
I
O
=-8mA
2.4 2.4
1.65 2.3
I
O
=-6mA
1.8 1.8
V
OLA
Low Level
Output Voltage
2.3 3.0
IO=100µA
0.2 0.2
V
2.3 3.0
I
O
=8mA
0.55 0.55
1.65 3.0
I
O
=8mA
0.55 0.55
1.65 2.3
I
O
=6mA
0.40 0.40
I
IA
Input Leakage
Current
2.7 3.6
V
I=VCC
or GND
± 0.5 ± 5 µA
I
OZA
High Impedance
Output Leakage
Current
2.7 3.6 V
IA
= GND or 3.6V
V
IB=VIHB
or V
ILB
G =V
CCB
± 1.0 ± 10 µA
I
OFF
Power Off
Leakage Current
00VIA= GND to 3.6V
V
IB
=GND to3.6V
G
, Dir = GND to
3.6V
± 1.0 ± 10 µA
I
CCtA
Quiescent
Supply Current
1.95 3.6
V
IA=VCCA
or GND
V
IB=VCCB
or GND
220µA
1.95 2.7
2.7 3.6
∆I
CCtA
Maximum
Quiescent
Supply Current /
Input (An)
2.7 3.6
V
IA=VCCA
-0.6V
V
IB=VCCB
or GND
0.75 mA
1.95 3.6
1.95 2.7
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