器件名称:
54LS125
功能描述:
QUAD 3-STATE BUFFERS
文件大小:
158.38KB 共5页
简 介:
QUAD 3-STATE BUFFERS VCC 14 E 13 D 12 O 11 E 10 D 9 O 8 SN54/74LS125A SN54/74LS126A QUAD 3-STATE BUFFERS LOW POWER SCHOTTKY 1 E 2 D 3 O 4 E 5 D 6 O 7 GND LS125A VCC 14 E 13 D 12 O 11 E 10 D 9 O 8 14 1 J SUFFIX CERAMIC CASE 632-08 14 1 N SUFFIX PLASTIC CASE 646-06 1 E 2 D 3 O 4 E 5 D 6 O 7 GND 14 1 LS126A D SUFFIX SOIC CASE 751A-02 TRUTH TABLES LS125A INPUTS E L L H D L H X OUTPUT L H (Z) INPUTS E H H L D L H X OUTPUT L H (Z) LS126A ORDERING INFORMATION SN54LSXXXJ SN74LSXXXN SN74LSXXXD Ceramic Plastic SOIC L = LOW Voltage Level H = HIGH Voltage Level X = Don’t Care (Z) = High Impedance (off) GUARANTEED OPERATING RANGES Symbol VCC TA IOH IOL Supply Voltage Operating Ambient Temperature Range Output Current — High Output Current — Low Parameter 54 74 54 74 54 74 54 74 Min 4.5 4.75 – 55 0 Typ 5.0 5.0 25 25 Max 5.5 5.25 125 70 – 1.0 – 2.6 12 24 Unit V °C mA mA FAST AND LS TTL DATA 5-207 SN54/74LS125A SN54/74LS126A DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified) Limits Symbol VIH VIL VIK VOH Parameter Input HIGH Voltage 54 Input LOW Voltage 74 Input Clamp Diode Voltage 54 Output HIGH Voltage 74 54, 74 VOL IOZH IOZL IIH IIL IOS ICC Output LOW Voltage 74 Output Off Current HIGH Output Off Current LOW Input HIGH Current 0.1 Input LOW Current Short Circuit Current (Note 1) LS125A Power Supply Current LS126A 22 – 40 – 0.4 –225 20 mA VCC = MAX 0.35 0.5 20 – 20 20 V A A A mA mA mA 2.4 0.25 0.4 V V 2.4 – 0.65 0.8 – 1.5 V V Min ……
