PSD211R datasheet(8/51 Pages) STMICROELECTRONICS

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PSD211R Family

4.0

PSD211R Family

Feature

Summary

Use the following table to determine which PSD product will fit your needs. Refer back to

this page whenever there is confusion as to which part has what features.

t Motorola family: 68HC11, 68HC05C0

t Intel family:

80C31, 80C51, 80C188, 80C198

t Philips family:

80C31 and 80C51 based MCUs

t Zilog:

Typical

# PLD

EPROM

Turbo

Standby

Part

Inputs

Size

Voltage

Bit

Current

PSD211R

256 Kb

5 V

50 µA

ZPSD211R

256 Kb

5 V

10 µA

ZPSD211RV

256 Kb

3 V/5 V

1 µA

Table 1. PSD211R Product Summary

5.0

Partial Listing

Microcontrollers

Supported

t Telecommunications:

• Cellular phone

• Digital PBX

• Digital speech

• FAX

• Digital Signal Processing (DSP)

t Portable Industrial Equipment:

• Industrial Control

• Measurement meters

• Data recorders

• Security and access control

t Medical Instrumentation:

• Hearing aids

• Monitoring equipment

• Diagnostic tools

6.0

Applications

NOTE: The low power version of the ZPSD211R (the ZPSD211RV) can only accept an active-low level Reset

input.

Portable and battery-powered systems have recently become major embedded control

application segments. As a result, the demand for electronic components having extremely

low power consumption has increased dramatically. Recognizing this trend, WSI, Inc.

developed a new lower power PSD part, denoted ZPSD211R. The Z stands for Zero-power

because ZPSD products virtually eliminate the DC component of power consumption,

reducing it to standby levels. Virtual elimination of the DC component is the basis for the

words “Zero-power” in the ZPSD name. ZPSD products also minimize the AC power

component when the chip is changing states. The result is a programmable microcontroller

peripheral family that replaces discrete circuit components, while drawing less power.

7.0

ZPSD

Background

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