74AVCH4T245-Q100
4-bit dual supply translating transceiver with configurable
voltage translation; 3-state
Rev. 2 — 17 December 2015
Product data sheet
1. General description
The 74AVCH4T245-Q100 is a 4-bit, dual supply transceiver that enables bidirectional
level translation. The device can be used as two 2-bit transceivers or as a 4-bit
transceiver. It features two 2-bit input-output ports (nAn and nBn), a direction control input
(nDIR), an output enable input (nOE) and dual supply pins (V
CC(A)
and V
CC(B)
). Both
V
CC(A)
and V
CC(B)
can be supplied with any voltage between 0.8 V and 3.6 V. This feature
makes the device suitable for translating between any of the low voltage nodes (0.8 V,
1.2 V, 1.5 V, 1.8 V, 2.5 V and 3.3 V). Pins nAn, nOE and nDIR are referenced to V
CC(A)
and pins nBn are referenced to V
CC(B)
. A HIGH on nDIR allows transmission from nAn to
nBn and a LOW on nDIR allows transmission from nBn to nAn. The output enable input
(nOE) can be used to disable the outputs so the buses are effectively isolated.
The device is fully specified for partial power-down applications using I
OFF
. The I
OFF
circuitry disables the output, preventing any damaging backflow current through the
device when it is powered down. In suspend mode when either V
CC(A)
or V
CC(B)
are at
GND level, both nAn and nBn outputs are in the high-impedance OFF-state. The bus hold
circuitry on the powered-up side always stays active.
The 74AVCH4T245-Q100 has active bus hold circuitry which is provided to hold unused
or floating data inputs at a valid logic level. This feature eliminates the need for external
pull-up or pull-down resistors.
This product has been qualified to the Automotive Electronics Council (AEC) standard
Q100 (Grade 1) and is suitable for use in automotive applications.
2. Features and benefits
Automotive product qualification in accordance with AEC-Q100 (Grade 1)
Specified from
40 C
to +85
C
and from
40 C
to +125
C
Wide supply voltage range:
V
CC(A)
: 0.8 V to 3.6 V
V
CC(B)
: 0.8 V to 3.6 V
Complies with JEDEC standards:
JESD8-12 (0.8 V to 1.3 V)
JESD8-11 (0.9 V to 1.65 V)
JESD8-7 (1.2 V to 1.95 V)
JESD8-5 (1.8 V to 2.7 V)
JESD8-B (2.7 V to 3.6 V)
NXP Semiconductors
74AVCH4T245-Q100
4-bit dual supply translating transceiver; 3-state
ESD protection:
MIL-STD-883, method 3015 Class 3B exceeds 8000 V
HBM JESD22-A114E Class 3B exceeds 8000 V
MM JESD22-A115-A exceeds 200 V (C = 200 pf, R = 0
)
Maximum data rates:
380 Mbit/s ( 1.8 V to 3.3 V translation)
200 Mbit/s ( 1.1 V to 3.3 V translation)
200 Mbit/s ( 1.1 V to 2.5 V translation)
200 Mbit/s ( 1.1 V to 1.8 V translation)
150 Mbit/s ( 1.1 V to 1.5 V translation)
100 Mbit/s ( 1.1 V to 1.2 V translation)
Suspend mode
Bus hold on data inputs
Latch-up performance exceeds 100 mA per JESD 78 Class II
Inputs accept voltages up to 3.6 V
I
OFF
circuitry provides partial Power-down mode operation
Multiple package options
3. Ordering information
Table 1.
Ordering information
Package
Temperature range Name
74AVCH4T245D-Q100
40 C
to +125
C
SO16
TSSOP16
Description
plastic small outline package; 16 leads;
body width 3.9 mm
plastic thin shrink small outline package;
16 leads; body width 4.4 mm
Version
SOT109-1
SOT403-1
Type number
74AVCH4T245PW-Q100
40 C
to +125
C
74AVCH4T245BQ-Q100
40 C
to +125
C
DHVQFN16 plastic dual in-line compatible thermal enhanced SOT763-1
very thin quad flat package; no leads;
16 terminals; body 2.5
3.5
0.85 mm
4. Marking
Table 2.
Marking codes
Marking code
74AVCH4T245D
CH4T245
H4T245
Type number
74AVCH4T245D-Q100
74AVCH4T245PW-Q100
74AVCH4T245BQ-Q100
74AVCH4T245_Q100
All information provided in this document is subject to legal disclaimers.
© NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet
Rev. 2 — 17 December 2015
2 of 27
NXP Semiconductors
74AVCH4T245-Q100
4-bit dual supply translating transceiver; 3-state
5. Functional diagram
13
1B1
V
CC(A)
V
CC(B)
12
1B2
11
2B1
10
2B2
15
1OE
2OE
14
2
1DIR
2DIR
3
1A1
4
5
1A2
6
2A1
7
2A2
001aak280
Fig 1.
Logic symbol
DIR
OE
A1
B1
A2
B2
V
CC(A)
V
CC(B)
001aak281
Fig 2.
Logic diagram (one 2-bit transceiver)
74AVCH4T245_Q100
All information provided in this document is subject to legal disclaimers.
© NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet
Rev. 2 — 17 December 2015
3 of 27
NXP Semiconductors
74AVCH4T245-Q100
4-bit dual supply translating transceiver; 3-state
6. Pinning information
6.1 Pinning
74AVCH4T245-Q100
V
CC(A)
1DIR
2DIR
1A1
1A2
2A1
2A2
GND
1
2
3
4
5
6
7
8
16 V
CC(B)
15 1OE
14 2OE
13 1B1
12 1B2
11 2B1
10 2B2
9
GND
74AVCH4T245-Q100
V
CC(A)
1
1DIR 2
2DIR 3
1A1 4
1A2 5
2A1 6
2A2 7
GND 8
16 V
CC(B)
15 1OE
14 2OE
13 1B1
12 1B2
11 2B1
10 2B2
9
GND
aaa-003608
aaa-003609
Fig 3.
Pin configuration SOT109-1 (SO16)
Fig 4.
Pin configuration SOT403-1 (TSSOP16)
74AVCH4T245-Q100
V
CC(A)
terminal 1
index area
1DIR
2DIR
1A1
1A2
2A1
2A2
2
3
4
5
6
7
16 V
CC(B)
1
15 1OE
14 2OE
13 1B1
12 1B2
GND
(1)
8
9
GND
aaa-003610
11 2B1
10 2B2
Transparent top view
(1) This is not a supply pin, the substrate is attached to this pad using conductive die attach material. There is no electrical or
mechanical requirement to solder this pad. However, if it is soldered, the solder land should remain floating or be connected to
GND.
Fig 5.
Pin configuration SOT763-1 (DHVQFN16)
74AVCH4T245_Q100
All information provided in this document is subject to legal disclaimers.
GND
© NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet
Rev. 2 — 17 December 2015
4 of 27
NXP Semiconductors
74AVCH4T245-Q100
4-bit dual supply translating transceiver; 3-state
6.2 Pin description
Table 3.
Symbol
V
CC(A)
1DIR, 2DIR
1A1, 1A2
2A1, 2A2
GND
[1]
2B2, 2B1
1B2, 1B1
2OE, 1OE
V
CC(B)
[1]
Pin description
Pin
1
2, 3
4, 5
6, 7
8, 9
10, 11
12, 13
14, 15
16
Description
supply voltage A (nAn, nOE and nDIR inputs are referenced to V
CC(A)
)
direction control
data input or output
data input or output
ground (0 V)
data input or output
data input or output
output enable input (active LOW)
supply voltage B (nBn inputs are referenced to V
CC(B)
)
All GND pins must be connected to ground (0 V).
7. Functional description
Table 4.
Function table
[1]
Input
nOE
[2]
L
L
H
X
nDIR
[2]
L
H
X
X
Input/output
[3]
nAn
[2]
nAn = nBn
input
Z
Z
nBn
[2]
input
nBn = nAn
Z
Z
Supply voltage
V
CC(A)
, V
CC(B)
0.8 V to 3.6 V
0.8 V to 3.6 V
0.8 V to 3.6 V
GND
[3]
[1]
[2]
[3]
H = HIGH voltage level; L = LOW voltage level; X = don’t care; Z = high-impedance OFF-state.
The nAn, nDIR and nOE input circuit is referenced to V
CC(A)
; The nBn input circuit is referenced to V
CC(B)
.
If at least one of V
CC(A)
or V
CC(B)
is at GND level, the device goes into suspend mode.
74AVCH4T245_Q100
All information provided in this document is subject to legal disclaimers.
© NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet
Rev. 2 — 17 December 2015
5 of 27
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