SN74ALVCH244 Datasheet | Texas Instruments

FEATURES - Operates From 1.65 V to 3.6 V - Max tpd of 2.8 ns at 3.3 V - ±24-m A Output Drive at 3.3 V - Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors - Latch-Up Performance Exceeds 250 m A Per JESD 17 - ESD Protection Exceeds JESD 22 - 2000-V Human-Body Model (A114-A) - 200-V Machine Model (A115-A) SN74ALVCH244 OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS SCES112F - JULY 1997 - REVISED AUGUST 2004 DGV, DW, NS, OR PW PACKAGE (TOP VIEW) 1OE 1 1A1 2 2Y4 3 1A2 4 2Y3 5 1A3 6 2Y2 7 1A4 8 2Y1 9 GND 10 20 VCC 19 2OE 18 1Y1 17 2A4 16 1Y2 15 2A3 14 1Y3 13 2A2 12 1Y4 11 2A1 DESCRIPTION /ORDERING INFORMATION This octal buffer/line driver is designed for 1.65-V to 3.6-V VCC operation. The SN74ALVCH244 is organized as two 4-bit line drivers with separate output-enable (OE) inputs. When OE is low, the device passes data from the A inputs to the Y outputs. When OE is high, the outputs are in the high-impedance state. To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors with the bus-hold circuitry is not remended. TA SOIC - DW -40°C to 85°C - NS TSSOP - PW TVSOP - DGV ORDERING INFORMATION PACKAGE (1) ORDERABLE PART NUMBER Tube SN74ALVCH244DW Tape and reel SN74ALVCH244DWR Tape and reel SN74ALVCH244NSR...