74HC237, 74HC237A, 74HC237AP Selling Leads, Datasheet
MFG:HITACHI Package Cooled:SOP-5.2 D/C:OB2T
74HC237, 74HC237A, 74HC237AP Datasheet download
Part Number: 74HC237
MFG: HITACHI
Package Cooled: SOP-5.2
D/C: OB2T
74HC237, 74HC237A, 74HC237AP
- Table of contents:
Info of 74HC237
Info of 74HC237A
Info of 74HC237AP
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About 74HC237
PDF/DataSheet Download
Datasheet: 74HC237
File Size: 69965 KB
Manufacturer: PHILIPS [Philips Semiconductors]
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About 74H00
PDF/DataSheet Download
Datasheet: 74H00
File Size: 62068 KB
Manufacturer: ETC [ETC]
Download : Click here to Download
About 74H00
PDF/DataSheet Download
Datasheet: 74H00
File Size: 62068 KB
Manufacturer: ETC [ETC]
Download : Click here to Download
74HC237 General Description
The 74HC237 is a high-speed Si-gate CMOS device and is pin compatible with low power Schottky TTL (LSTTL). The 74HC237 is specified in compliance with JEDEC standard no. 7A.
The 74HC237 is a 3-to-8 line decoder, demultiplexer with latches at the three address inputs (An). The 74HC237 essentially combines the 3-to-8 decoder function with a 3-bit storage latch. When the latch is enabled (LE = LOW), the 74HC237 acts as a 3-to-8 active LOW decoder. When the latch enable (LE) goes from LOW-to-HIGH, the last data present at the inputs before this transition, is stored in the latches. Further address changes are ignored as long as LE remains HIGH.
The output enable input (E1 and E2) controls the state of the outputs independent of the address inputs or latch operation. All outputs are HIGH unless E1 is LOW and E2 is HIGH.
The 74HC237 is ideally suited for implementing non-overlapping decoders in 3-state systems and strobed (stored address) applications in bus oriented systems.
74HC237 Maximum Ratings
| SYMBOL | PARAMETER | CONDITIONS | MIN. | MAX. | UNIT |
| VCC | supply voltage | -0.5 | +7.0 | V | |
| IIK | input diode current | VI < -0.5 V or VI > VCC + 0.5 V | - | ±20 | mA |
| IOK | output diode current | VO < -0.5 V or VO > VCC + 0.5 V | - | ±20 | mA |
| IO | output source or sink current | VO = -0.5 V to VCC + 0.5 V | - | ±25 | mA |
| ICC | VCC or GND current | - | ±50 | mA | |
| Tstg | storage temperature | -65 | +150 | °C | |
| Ptot |
power dissipation | ||||
| DIP16 package | [1] - | 750 | mW | ||
| SO16 and SSOP16 packages |
[2] - | 500 | mW |
[1] Above 70 °C: Ptot derates linearly with 12 mW/K.
[2] Above 70 °C: Ptot derates linearly with 8 mW/K.
74HC237 Features
·Combines 3-to-8 decoder with 3-bit latch
·Multiple input enable for easy expansion or independent controls
·Active HIGH mutually exclusive outputs
·Low-power dissipation
·Complies with JEDEC standard no. 7A
·ESD protection:
HBM EIA/JESD22-A114-B exceeds 2000 V
MM EIA/JESD22-A115-A exceeds 200 V.
·Multiple package options
·Specified from -40 °C to +80 °C and from -40 °C to +125 °C.
·Multiple input enable for easy expansion or independent controls
·Active HIGH mutually exclusive outputs
·Low-power dissipation
·Complies with JEDEC standard no. 7A
·ESD protection:
HBM EIA/JESD22-A114-B exceeds 2000 V
MM EIA/JESD22-A115-A exceeds 200 V.
·Multiple package options
·Specified from -40 °C to +80 °C and from -40 °C to +125 °C.
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