74VCXH1632245 16-BIT DUAL SUPPLY BUS TRANSCEIVER LEVEL TRANSLATOR WITH A SIDE SERIES RESISTOR HIGH SPEED: t = 4.4ns (MAX.) at T =85C PD A V =3.0VV =2.3V CCA CCB LOW POWER DISSIPATION: I =I =20 A(MAX.) at T =85C CCA CCB A SYMMETRICAL OUTPUT IMPEDANCE: I = I = 8mA MIN at OHA OLA V =3.0V V = 1.65V or 2.3V CCA CCB TSSOP TFBGA TFBGA I = I =6mA(MIN at OHB OLB V = 2.3V or 3.0V V =1.65V) CCA CCB BALANCED PROPAGATION DELAYS: ORDER CODES t t PLH PHL POWER DOWN PROTECTION ON INPUTS PACKAGE T & R AND OUTPUTS TSSOP48 74VCXH1632245TTR SERIES RESISTOR ON A SIDE TFBGA54 74VCXH1632245LBR OPERATING VOLTAGE RANGE: TFBGA42 74VCXH1632245TBR V (OPR) = 2.3V to 3.6V (1.2V Data CCA Retention) V (OPR) = 1.65V to2.7V (1.2V Data CCB bus terminals during High Z State dont need ex- Retention) ternal pull-up or pull-down resistor. PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 16245 BUS HOLD PROVIDED ON DATA INPUT BOTH SIDE LOGIC DIAGRAM LATCH-UP PERFORMANCE EXCEEDS 500mA (JESD 17) ESD PERFORMANCE: HBM > 2000V (MIL STD 883 method 3015) MM > 200V DESCRIPTION The 74VCXH1632245 is a dual supply low voltage CMOS 16-BIT BUS TRANSCEIVER fabricated with sub-micron silicon gate and five-layer metal 2 wiring C 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 systems, it achieves high speed operation while maintaining the CMOS low power dissipation. This IC is intended for two-way asynchronous communication between data buses and the direction of data transmission is determined by nDIR inputs. The enable inputs nGcanbeusedto disable the device so that the buses are effectively isolated. The A-port interfaces with the 3V bus, the B-port with the 2.5V and 1.8V bus. n=1, 2 All inputs are equipped with protection circuits against static discharge, giving them 2KV ESD im- munity and transient excess voltage. All floating Rev. 1 June 2004 1/17 Obsolete Product(s) - Obsolete Product(s) Obsolete Product(s) - Obsolete Product(s) 74VCXH1632245 Figure 1: Input And Output Equivalent Circuit Table 1: Pin Description TFBGA54 PIN N TFBGA42 PIN N TSSOP PIN N SYMBOL NAME AND FUNCTION A3 B3 1 1DIR Directional Controls J3 F3 24 2DIR Directional Controls A6, B5, B6, C5, A4, A5, A6, B5, 47, 46, 44, 43, 1A1 to 1A8 Data Inputs/Outputs C6, D5, D6, E5 B6, C5, C6, D5 41, 40, 38, 37 E6,F5,F6,G5, D6,E5, E6,F5, 36, 35, 33, 32, 2A1 to 2A8 Data Inputs/Outputs G6, H5, H6, J6 F6,G4, G5, G6 30, 29, 27, 26 A1, B2, B1, C2, A3, A2, A1, B2, 2, 3, 5, 6, 1B1 to 1B8 Data Inputs/Outputs C1, D2, D1, E2 B1, C2, C1, D2 8, 9, 11, 12 E1,F2,F1,G2, D1, E2, E1, F2, 13, 14, 16, 17, 2B1 to 2B8 Data Inputs/Outputs G1, H2, H1, J1 F1,G3, G2, G1 19, 20, 22, 23 J4 F4 25 2G Output Enable Inputs A4 B4 48 1G Output Enable Inputs D3, D4, E3, E4, C3, C4, E3, E4 4, 10, 15, 21, GND Ground (0V) F3, F4 28, 34, 39, 45 A2, A5, B3, B4, - - NC No Connected H3, H4, J2, J5 C4, G4 D4 42, 31 V Positive Supply Voltage CCA C3,G3 D3 7,18 V Positive Supply Voltage CCB 2/17 Obsolete Product(s) - Obsolete Product(s) Obsolete Product(s) - Obsolete Product(s)