74AVCH8T245BQ Nexperia

74AVCH8T245 8-bit dual supply translating transceiver with configurable voltage translation; 3-state Rev. 5 27 December 2012 Product data sheet 1. General description The 74AVCH8T245 is an 8-bit, dual supply transceiver that enables bidirectional level translation. It features two 8-bit input-output ports (An and Bn), a direction control input (DIR), a output enable input (OE) and dual supply pins (V and V ). Both V CC(A) CC(B) CC(A) and V can be supplied at any voltage between 0.8 V and 3.6 V making the device CC(B) 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 An, OE and DIR are referenced to V and pins Bn are CC(A) referenced to V . A HIGH on DIR allows transmission from An to Bn and a LOW on CC(B) 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 device is fully specified for partial power-down applications using I . The I OFF OFF circuitry disables the output, preventing any damaging backflow current through the device when it is powered down. In suspend mode when either V or V are at CC(A) CC(B) GND level, both An and Bn outputs are in the high-impedance OFF-state. The bus-hold circuitry on the powered-up side always stays active. The 74AVCH8T245 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. 2. Features and benefits Wide supply voltage range: V : 0.8 V to 3.6 V CC(A) V : 0.8 V to 3.6 V CC(B) 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) ESD protection: HBM JESD22-A114E Class 3B exceeds 8000 V MM JESD22-A115-A exceeds 200 V CDM JESD22-C101C exceeds 1000 V Maximum data rates: 380 Mbit/s ( 1.8 V to 3.3 V translation) 260 Mbit/s ( 1.1 V to 3.3 V translation)74AVCH8T245 Nexperia 8-bit dual supply translating transceiver; 3-state 260 Mbit/s ( 1.1 V to 2.5 V translation) 210 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 circuitry provides partial Power-down mode operation OFF Multiple package options Specified from 40 Cto+85 C and 40 Cto+125 C 3. Ordering information Table 1. Ordering information Type number Package Temperature range Name Description Version 74AVCH8T245PW 40 C to +125 C TSSOP24 plastic thin shrink small outline package; 24 leads; SOT355-1 body width 4.4 mm 74AVCH8T245BQ 40 C to +125 C DHVQFN24 plastic dual in-line compatible thermal enhanced very SOT815-1 thin quad flat package; no leads; 24 terminals; body 3.5 5.5 0.85 mm 4. Functional diagram B1 B2 B3 B4 B5 B6 B7 B8 21 20 19 18 17 16 15 14 V V CC(A) CC(B) 22 OE 2 DIR 3 45678910 A1 A2 A3 A4 A5 A6 A7 A8 001aai472 Fig 1. Logic symbol 74AVCH8T245 All information provided in this document is subject to legal disclaimers. Nexperia B.V. 2017. All rights reserved Product data sheet Rev. 5 27 December 2012 2 of 25