74VCX1632245 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 = 3.0V V = 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 = 18mA MIN at OHA OLA V = 2.3V V = 1.65V) CCA CCB BALANCED PROPAGATION DELAYS: Table 1: Order Codes t t PLH PHL POWER DOWN PROTECTION ON INPUTS PACKAGE T & R AND OUTPUTS TSSOP48 74VCX1632245TTR 26 SERIES RESISTOR ON A SIDE OUTPUTS TFBGA54 74VCX1632245LBR OPERATING VOLTAGE RANGE: TFBGA42 74VCX1632245TBR V (OPR) = 2.3V to 3.6V (1.2V Data CCA Retention) (OPR) = 1.65V to 2.7V (1.2V Data V CCB isolated. The A-port interfaces with the 3V bus, the Retention) B-port with the 2.5V and 1.8V bus. MAX DATA RATES: All inputs are equipped with protection circuits 380 Mbps (1.8V to 3.3V translation) against static discharge, giving them 2KV ESD im- 260 Mbps (<1.8V to 3.3V translation) munity and transient excess voltage. All floating 260 Mbps (Translate to 2.5V) bus terminals during High Z State must be held 210 Mbps (Translate to 1.5V) HIGH or LOW. 100 Mbps (Translate to 1.2V) Figure 1: Logic Diagram PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 16245 LATCH-UP PERFORMANCE EXCEEDS 500mA (JESD 17) ESD PERFORMANCE: 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 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 nG can be used to n = 1, 2 disable the device so that the buses are effectively Rev. 14 March 2005 1/18 Obsolete Product(s) - Obsolete Product(s)74VCX1632245 Figure 2: Input And Output Equivalent Circuit Table 2: Pin Description TFBGA54 PIN 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, 1A2, 1A3, 1A4, Data Inputs/Outputs C6, D5, D6, E5 B6, C5, C6, D5 41, 40, 38, 37 1A5, 1A6, 1A7, 1A8 E6, F5, F6, G5, D6, E5, E6, F5, 36, 35, 33, 32, 2A1, 2A2, 2A3, 2A4, Data Inputs/Outputs G6, H5, H6, J6 F6, G4, G5, G6 30, 29, 27, 26 2A5, 2A6, 2A7, 2A8 A1, B2, B1, C2, A3, A2, A1, B2, 2, 3, 5, 6, 1B1, 1B2, 1B3, 1B4, Data Inputs/Outputs C1, D2, D1, E2 B1, C2, C1, D2 8, 9, 11, 12 1B5, 1B6, 1B7, 1B8 E1, F2, F1, G2, D1, E2, E1, F2, 13, 14, 16, 17, 2B1, 2B2, 2B3, 2B4, Data Inputs/Outputs G1, H2, H1, J1 F1, G3, G2, G1 19, 20, 22, 23 2B5, 2B6, 2B7, 2B8 J4 F4 25 G2 Output Enable Inputs A4 B4 48 G1 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 2/18 Obsolete Product(s) - Obsolete Product(s)