INTEGRATED CIRCUITS
DATA SHEET
For a complete data sheet, please also download:
∙The IC04 LOCMOS HE4000B Logic Family Specifications HEF, HEC
∙The IC04 LOCMOS HE4000B Logic Package Outlines/Information HEF, HEC
HEF40373B MSI
Octal transparent latch with 3-state outputs
Product specification |
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January 1995 |
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File under Integrated Circuits, IC04 |
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Philips Semiconductors |
Product specification |
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Octal transparent latch with 3-state outputs
HEF40373B
MSI
DESCRIPTION
The HEF40373B is an 8-bit transparent latch with 3-state buffered outputs. The output stages have high current output capability suitable for driving highly capacitive loads. The latch outputs follow the data inputs when the latch enable (E) is HIGH. When E is LOW, the data that meets the set-up times is latched. The 3-state outputs are controlled by the output enable input EO. A HIGH on
Fig.1 Functional diagram.
HEF40373BP(N): 20-lead DIL; plastic
(SOT146-1)
HEF40373BD(F): 20-lead DIL; ceramic (cerdip)
(SOT152)
HEF40373BT(D): 20-lead SO; plastic
(SOT163-1)
( ): Package Designator North America
EO causes the outputs to assume a high impedance OFF-state. The device features hysteresis on the E input to improve noise rejection.
Schmitt-trigger action in the E input makes the circuit highly tolerant to slower input rise and fall times.
The HEF40373B is pin and functionally compatible with the TTL ‘373’ device.
Supply voltage range: 3 to 15 V.
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Fig.2 Pinning diagram. |
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PINNING |
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D0 to D7 |
data inputs |
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E |
latch enable input |
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output enable input (active LOW) |
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EO |
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O0 to O7 |
3-state buffered outputs |
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FAMILY DATA, IDD LIMITS category MSI
See Family Specifications
January 1995 |
2 |
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1995 January
3
Fig.3 Logic diagram.
Fig.4 Logic diagram (one latch).
outputs state-3 with latch transparent Octal
HEF40373B MSI
Semiconductors Philips
specification Product
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