SAE81C52 SIEMENS [Siemens Semiconductor Group], SAE81C52 Datasheet

SAE81C52

Manufacturer Part Number

SAE81C52

Description

256 x 8-Bit Static CMOS RAM NMOS-Compatible

Manufacturer

SIEMENS [Siemens Semiconductor Group]

Datasheet

1.SAE81C52.pdf (10 pages)

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256 x 8-Bit Static CMOS RAM

NMOS-Compatible

Preliminary DataCMOS IC

PFeatures

Type

SAE 81C52 P

SAE 81C52 G

The SAE 81C52 is a CMOS-silicon gate, static random access memory (RAM),

organized as 256 words by 8 bits. The multiplexed address and data bus interfaces

directly to 8-bit microprocessors/microcontrollers without any timing or level problems,

e.g. the families SAB 8086, SAB 8051.

All inputs and outputs are fully compatible with NMOS circuits, except CS1. Data

retention is ensured up to

chip select modes which allow to inhibit either the address/data lines (AD 0 … AD 7) and

the control lines (WR, RD, ALE, CS2, CS3), or only the control lines RD, WR.

The power consumption is max. 5.5

operation. In standby mode, the power consumption will not increase if the control inputs

are on undefined potential.

Semiconductor Group

256 x 8-bit organization

Standby mode

Compatible with the NMOS and CMOS versions

of the microprocessor/microcontroller families

SAB 8086, SAB 8051

Very low power dissipation

Data retention up to

Three different chip select inputs for two chip

select modes

No increasing power consumption in standby mode

if the control inputs are on undefined potential

Temperature range – 40 to 110 C

1 V

Ordering Code

Q67100-H9017

Q67100-H9015

1.0 V. The SAE 81C52 has three different inputs for two

W in standby mode and max. 16.5 mW in

P-DIP-16-1

P-DSO-20-1

Package

P-DIP-16-1

P-DSO-20-1 (SMD)

SAE 81C52

09.94

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SAE81C52 Summary of contents

Page 1

Static CMOS RAM NMOS-Compatible Preliminary DataCMOS IC PFeatures 256 x 8-bit organization Standby mode Compatible with the NMOS and CMOS versions of the microprocessor/microcontroller families SAB 8086, SAB 8051 Very low power dissipation Data retention up to ...

Page 2

Pin Configurations (top view) SAE 81C52 P Semiconductor Group SAE 81C52 G 2 SAE 81C52 ...

Page 3

Pin Definitions and Functions SAE 81C52 G SAE 81C52 P Pin No. Pin No … 12 ...

Page 4

Block Diagram Semiconductor Group 4 SAE 81C52 ...

Page 5

Logic Symbol Truth Table CS1 CS2 CS3 ALE Level = V … ...

Page 6

Absolute Maximum Ratings T = – 110 C A Parameter Supply voltage referred to GND ( All input and output voltages Total power dissipation Power dissipation for each output Junction temperature Storage temperature Thermal resistance system - air ...

Page 7

DC Characteristics – 110 Parameter Standby supply current Supply current Standby voltage for data retention L-input current (for each input) Output leakage current L-input voltage H-input voltage L-output voltage H-output voltage L-input ...

Page 8

AC Characteristics – 110 Parameter ALE pulse width ALE low before RD low RD high before ALE high ALE low before WR low WR high before ALE high Address setup before ALE ...

Page 9

Timing Diagram Semiconductor Group 9 SAE 81C52 ...

Page 10

Application Circuit SAE 81C52 with the C SAB 8051 Semiconductor Group 10 SAE 81C52 ...

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