74LVQ138| Datasheet

74LVQ138, 74LVQ138MTR, 74LVQ138TTR

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74LVQ138
3 TO 8 LINE DECODER (INVERTING)
s

s s

HIGH SPEED: tPD = 5.5ns (TYP.) at VCC = 3.3 V COMPATIBLE WITH TTL OUTPUTS LOW POWER DISSIPATION: ICC = 4 uA (MAX.) at TA=25 C LOW NOISE: VOLP = 0.2V (TYP.) at VCC = 3.3V 75 TRANSMISSION LINE DRIVING CAPABILITY SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 12mA (MIN) at VCC = 3.0 V PCI BUS LEVELS GUARANTEED AT 24 mA BALANCED PROPAGATION DELAYS: tPLH tPHL OPERATING VOLTAGE RANGE: VCC(OPR) = 2V to 3.6V (1.2V Data Retention) PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 138 IMPROVED LATCH-UP IMMUNITY

SOP

TSSOP

Table 1: Order Codes
PACKAGE SOP TSSOP T&R 74LVQ138MTR 74LVQ138TTR

DESCRIPTION The 74LVQ138 is a low voltage CMOS 3 TO 8 LINE DECODER (INVERTING) fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology. It is ideal for low power and low noise 3.3V applications.

If the device is enabled, 3 binary select inputs (A, B, and C) determine which one of the outputs will go low. If enable input G1 is held low or either G2A or G2B is held high, the decoding function is inhibited and all the 8 outputs go to high. Three enable inputs are provided to ease cascade connection and application of address decoders for memory systems. All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage.

Figure 1: Pin Connection And IEC Logic Symbols

July 2004

Rev. 5

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