ver: 0.4 sep 14, 2013 tel: 886-3-5788833 http://www.gmt.com.tw 1 G2129 global mixed-mode technology 1-2-4-bit bidirectional voltage-level translator with automatic direction sensing and 15kv esd protection features ? 1.2v to 3.6v on a port and 1.65v to 5.5v on b port (v cca v ccb ) ? v cc isolation feature-if either v cc input is at gnd, all outputs are in the high-impedance state ? eo input circuit referenced to v cca ? low power consumption, 5a max i cc ? no power-supply sequencing required-either v cca or v ccb can be ramped first ? i off supports partial-power-down mode operation ? latch-up performance exceeds 100ma per jesd 78, class ii ? esd protection exceeds jesd 22 C a port 2500v human-body model (a114-b) 1500v charged-device model (c101) C b port 15 kv human-body model (a114-b) 1500v charged-device model (c101) ? sc-70-6 (sot-363), sot-23-6, sot-23-8, aqfn1.7x2.0-12 and aqfn1.5x1.5-8 package general description this 4-bit noninverting translator uses two separate configurable power-supply rails. the a port is de- signed to track v cca . v cca accepts any supply volt- age from 1.2v to 3.6v. the b port is designed to track v ccb . v ccb accepts any supply voltage from 1.65v to 5.5v. this allows for universal low-voltage bidirectional translation between any of the 1.2v, 1.5v, 1.8v, 2.5v, 3.3v, and 5v voltage nodes. v cca should not exceed v ccb . when the enable-output (eo) input is low, all outputs are placed in the high-impedance state. to ensure the high-impedance state during power up or power down, eo should be tied to gnd through a pulldown resistor; the minimum value of the resistor is determined by the current-sourcing capability of the driver. the G2129 is designed so that the eo input circuit is supplied by v cca . this device is fully specified for partial-power-down applications using i off . the i off circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. ordering information order number marking temp. range package (green) G2129tl1u 219x -40 c to +85 c sc-70-6 (sot-363) G2129tb1u 2129x -40 c to +85 c sot-23-6 G2129tm1u 2129x -40 c to +85 c sot-23-8 G2129ae1u 2129 -40 c to +85 c aqfn1.7x2.0-12 G2129a71u 29 xx -40 c to +85 c aqfn1.5x1.5-8 note: tl: sc-70-6 (sot-363) tb: sot-23-6 tm: sot-23-8 ae: aqfn1.7x2.0-12 a7: aqfn1.5x1.5-8 1: bonding code u: tape & reel pin configuration typical application circuit vccb b4 eo gnd v cc a 1 2 3 4 5 6 G2129 a4 sc-70-6 (sot-363)/ sot-23-6 vcca sot-23-8 1 2 3 4 5 6 7 8 G2129 vccb eo b3 b4 gnd a3 a4 1.8v 0.1f 1.8v system controller gnd data data a1 a2 b1 b2 gnd eo vccb vcca data data gnd 3.3v system 0.1f 3.3v G2129 aqfn1.7x2.0-12 vcca a1 a2 a3 a4 gnd b4 b3 b2 b1 vccb eo 4 8 3 2 1 5 6 7 aqfn1.5x1.5-8 gnd vccb b3 b4 eo vcca a3 a4 G2129 1 2 3 4 57 8 9 10 6 11 12 vccb b4 eo gnd v cc a 1 2 3 4 5 6 G2129 a4 sc-70-6 (sot-363)/ sot-23-6 vcca sot-23-8 1 2 3 4 5 6 7 8 G2129 vccb eo b3 b4 gnd a3 a4 1.8v 0.1f 1.8v system controller gnd data data a1 a2 b1 b2 gnd eo vccb vcca data data gnd 3.3v system 0.1f 3.3v G2129 aqfn1.7x2.0-12 vcca a1 a2 a3 a4 gnd b4 b3 b2 b1 vccb eo 4 8 3 2 1 5 6 7 aqfn1.5x1.5-8 gnd vccb b3 b4 eo vcca a3 a4 G2129 1 2 3 4 57 8 9 10 6 11 12
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