74LVC8T245; 74LVCH8T245

8-bit dual supply translating transceiver; 3-state

The 74LVC8T245; 74LVCH8T245 are 8-bit dual supply translating transceivers with 3-state outputs that enable bidirectional level translation. They feature two data input-output ports (pins An and Bn), a direction control input (DIR), an output enable input (OE) and dual supply pins (V_CC(A) and V_CC(B)). Both V_CC(A) and V_CC(B) can be supplied at any voltage between 1.2 V and 5.5 V making the device suitable for translating between any of the low voltage nodes (1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V and 5.0 V). Pins An, OE and DIR are referenced to V_CC(A) and pins Bn are referenced to V_CC(B). A HIGH on DIR allows transmission from An to Bn and a LOW on DIR allows transmission from Bn to An. The output enable input (OE) can be used to disable the outputs so the buses are effectively isolated.

The devices are 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 A port and B port are in the high-impedance OFF-state.

Active bus hold circuitry in the 74LVCH8T245 holds unused or floating data inputs at a valid logic level.

Features and benefits

Wide supply voltage range:
- V_CC(A): 1.2 V to 5.5 V
- V_CC(B): 1.2 V to 5.5 V
High noise immunity
Complies with JEDEC standards:
- JESD8-7 (1.2 V to 1.95 V)
- JESD8-5 (1.8 V to 2.7 V)
- JESD8C (2.7 V to 3.6 V)
- JESD36 (4.5 V to 5.5 V)
Maximum data rates:
- 420 Mbps (3.3 V to 5.0 V translation)
- 210 Mbps (translate to 3.3 V)
- 140 Mbps (translate to 2.5 V)
- 75 Mbps (translate to 1.8 V)
- 60 Mbps (translate to 1.5 V)
Suspend mode
Latch-up performance exceeds 100 mA per JESD 78B Class II
±24 mA output drive (V_CC = 3.0 V)
Inputs accept voltages up to 5.5 V
Low power consumption: 30 μA maximum I_CC
I_OFF circuitry provides partial Power-down mode operation
ESD protection:
- HBM: ANSI/ESDA/JEDEC JS-001 class 3A exceeds 4000 V
- CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V
Specified from -40 °C to +85 °C and -40 °C to +125 °C

Parametrics

Type number	Product status	V_CC(A) (V)	V_CC(B) (V)	Logic switching levels	Output drive capability (mA)	t_pd (ns)	Nr of bits	Power dissipation considerations	T_amb (°C)	R_th(j-a) (K/W)	Ψ_th(j-top) (K/W)	R_th(j-c) (K/W)	Package name
74LVC8T245BQ	Production	1.2 - 5.5	1.2 - 5.5	CMOS/LVTTL	± 24	3.5	8	low	-40~125	66	5.8	40	DHVQFN24
74LVC8T245BZ	Production	1.2 - 5.5	1.2 - 5.5	CMOS/LVTTL	± 24	3.5	8	low	-40~125	-	-	-	DHXQFN24
74LVC8T245PW	Production	1.2 - 5.5	1.2 - 5.5	CMOS/LVTTL	± 24	3.5	8	low	-40~125	81	2.3	36	TSSOP24
74LVCH8T245BQ	Production	1.2 - 5.5	1.2 - 5.5	CMOS/LVTTL	± 24	3.5	8	low	-40~125	66	5.8	40	DHVQFN24
74LVCH8T245PW	Production	1.2 - 5.5	1.2 - 5.5	CMOS/LVTTL	± 24	3.5	8	low	-40~125	81	2.3	36	TSSOP24

Package

Type number	Package	Package information	Reflow-/Wave soldering	Packing	Status	Marking	Orderable part number, (Ordering code (12NC))
74LVC8T245BQ	DHVQFN24 (SOT815-1)	SOT815-1		SOT815-1_118	Active	LVC8T245	74LVC8T245BQ,118 ( 9352 901 38118 )
74LVC8T245BZ	DHXQFN24 (SOT8024-1)	SOT8024-1		SOT8024-1_115	Active	YC8T245	74LVC8T245BZX ( 9356 911 46115 )
74LVC8T245PW	TSSOP24 (SOT355-1)	SOT355-1	SSOP-TSSOP-VSO-WAVE	SOT355-1_118	Active	LVC8T245	74LVC8T245PW,118 ( 9352 901 49118 )
74LVCH8T245BQ	DHVQFN24 (SOT815-1)	SOT815-1		SOT815-1_118	Active	VCH8T245	74LVCH8T245BQ,118 ( 9352 901 48118 )
74LVCH8T245PW	TSSOP24 (SOT355-1)	SOT355-1	SSOP-TSSOP-VSO-WAVE	SOT355-1_118	Active	LVCH8T245	74LVCH8T245PW,118 ( 9352 901 51118 )

Environmental information

Type number	Orderable part number	Chemical content	Leadfree conversion date
74LVC8T245BQ	74LVC8T245BQ,118	74LVC8T245BQ	Always Pb-free
74LVC8T245BZ	74LVC8T245BZX	74LVC8T245BZ
74LVC8T245PW	74LVC8T245PW,118	74LVC8T245PW	Always Pb-free
74LVCH8T245BQ	74LVCH8T245BQ,118	74LVCH8T245BQ	Always Pb-free
74LVCH8T245PW	74LVCH8T245PW,118	74LVCH8T245PW	Always Pb-free

Quality and reliability disclaimer

Documentation (8)

File name	Title	Type	Date
74LVC_LVCH8T245	8-bit dual supply translating transceiver; 3-state	Data sheet	2023-08-10
Nexperia_document_guide_Logic_translators	Nexperia Logic Translators	Brochure	2021-04-12
lvc8t245	74LVC8T245 IBIS model	IBIS model	2021-02-02
lvch8t245	74LVCH8T245 IBIS model	IBIS model	2020-11-24
SSOP-TSSOP-VSO-WAVE	Footprint for wave soldering	Wave soldering	2009-10-08
SOT355-1	plastic, thin shrink small outline package; 24 leads; 0.65 mm pitch; 7.8 mm x 4.4 mm x 1.1 mm body	Package information	2022-06-22
SOT8024-1	plastic, leadless dual in-line compatible thermal enhanced extreme thin quad flat package;no leads; 24 terminals; 0.4 mm pitch; body 2 mm x 4 mm x 0.48 mm	Package information	2023-02-28
SOT815-1	plastic, leadless dual in-line compatible thermal enhanced very thin quad flat package; 24 terminals; 0.5 mm pitch; 5.5 mm x 3.5 mm x 1 mm body	Package information	2021-08-17

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Models

File name	Title	Type	Date
lvc8t245	74LVC8T245 IBIS model	IBIS model	2021-02-02
lvch8t245	74LVCH8T245 IBIS model	IBIS model	2020-11-24

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