SN74LS125A Series

4-ch, 4.75-V to 5.25-V bipolar buffers with 3-state outputs

Catalog

4-ch, 4.75-V to 5.25-V bipolar buffers with 3-state outputs

Part	Package / Case	Package / Case	Package / Case	Logic Type	Number of Elements	Voltage - Supply [Min]	Voltage - Supply [Max]	Number of Bits per Element	Supplier Device Package	Current - Output High, Low [custom]	Current - Output High, Low [custom]	Output Type	Mounting Type	Operating Temperature [Max]	Package / Case [x]	Package / Case [y]
Texas Instruments SN74LS125ADBR	5.3 mm	14-SSOP	0.209 "	Buffer Non-Inverting	4	4.75 V	5.25 V	1	14-SSOP	24 mA	2.6 mA	3-State	Surface Mount	70 °C
Texas Instruments SN74LS125ANSR		14-SOIC		Buffer Non-Inverting	4	4.75 V	5.25 V	1	14-SO	24 mA	2.6 mA	3-State	Surface Mount	70 °C	0.209 "	5.3 mm
Texas Instruments SN74LS125ADBRG4	5.3 mm	14-SSOP	0.209 "	Buffer Non-Inverting	4	4.75 V	5.25 V	1	14-SSOP	24 mA	2.6 mA	3-State	Surface Mount	70 °C
Texas Instruments SN74LS125ADR		14-SOIC		Buffer Non-Inverting	4	4.75 V	5.25 V	1		24 mA	2.6 mA	3-State	Surface Mount	70 °C	0.154 in	3.9 mm
Texas Instruments SN74LS125ADB	5.3 mm	14-SSOP	0.209 "	Buffer Non-Inverting	4	4.75 V	5.25 V	1	14-SSOP	24 mA	2.6 mA	3-State	Surface Mount	70 °C

Catalog

4-ch, 4.75-V to 5.25-V bipolar buffers with 3-state outputs

Key Features

• Quad Bus Buffers3-State OutputsSeparate Control for Each ChannelThe SN54125, SN54126, SN74125, SN74126, and SN54LS126A are obsolete and are no longer supplied.Quad Bus Buffers3-State OutputsSeparate Control for Each ChannelThe SN54125, SN54126, SN74125, SN74126, and SN54LS126A are obsolete and are no longer supplied.

Description

These bus buffers feature three-state outputs that, when enabled, have the low impedance characteristics of a TTL output with additional drive capability at high logic levels to permit driving heavily loaded bus lines without external pullup resistors. When disabled, both output transistors are turned off, presenting a high-impedance state to the bus so the output will act neither as a significant load nor as a driver. The ’125 and ’LS125A devices’ outputs are disabled when G\ is high. The ’126 and ’LS126A devices’ outputs are disabled when G is low. These bus buffers feature three-state outputs that, when enabled, have the low impedance characteristics of a TTL output with additional drive capability at high logic levels to permit driving heavily loaded bus lines without external pullup resistors. When disabled, both output transistors are turned off, presenting a high-impedance state to the bus so the output will act neither as a significant load nor as a driver. The ’125 and ’LS125A devices’ outputs are disabled when G\ is high. The ’126 and ’LS126A devices’ outputs are disabled when G is low.