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DS1200

Serial RAM Chip

www.maxim-ic.com

FEATURES

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1024 Bits of Read/Write Memory

Low Data Retention Current for Battery

Backup Applications

Four Million Bits/Second Data Rate

Single-Byte or Multiple-Byte Data Transfer

Capability

No Restrictions on the Number of Write

Cycles

Low-Power CMOS Circuitry

PIN ASSIGNMENT

16-Pin SO (300mil)

See Mech. Drawings Section

APPLICATIONS

Software Authorization

Computer Identification

System Access Control

Secure Personnel Areas

Calibration

Automatic System Setup

Traveling Work Record

PIN DESCRIPTION

V

CC

RST

DQ

CLK

GND

V

BAT

NC

- +5V

- Reset

- Data Input/Output

- Clock

- Ground

- Battery (+)

- No Connection

DESCRIPTION

The DS1200 serial RAM chip is a miniature read/write memory that can randomly access individual

8-bit strings (bytes) or sequentially access the entire 1024-bit contents (burst). Interface cost to a

microprocessor is minimized by on-chip circuitry, which permits data transfers with only three signals:

CLK, RST , and DQ.

Nonvolatility can be achieved by connecting a battery of 2V to 4V at the battery input V

BAT.

A load of

0.5

mA

should be used to size the external battery for the required data retention time. If nonvolatility is

not required the V

BAT

pin should be grounded.

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DS-11802D4-895W相關(guān)型號(hào)PDF文件下載

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  描述
  廠商
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  英文版
  Two-Way Power Divider 10 - 500 MHz
  MA-COM
  DS-109
• DS-109
  英文版
  Two-Way Power Divider 10 - 500 MHz
  MACOM [Tyc...
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• DS-113
  英文版
  Two-Way Power Divider 400 kHz400 MHz
  ETC
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• DS-113
  英文版
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  MACOM [Tyc...
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  英文版
  Three-Way Power Dividers 1300 MHz
  ETC
  DS-117
• DS-117
  英文版
  Three-Way Power Dividers 1300 MHz
  DS-117
• DS-150
  英文版
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  OPTICOMM
  DS-150
• DS-1177
  英文版
  Power Dividers Space Qualified
  ETC
  DS-1177
• DS-1177
  英文版
  Power Dividers Space Qualified
  DS-1177
• DS-1178
  英文版
  Power Dividers Space Qualified
  ETC
  DS-1178
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  英文版
  Power Dividers Space Qualified
  DS-1178
• DS-11880
  英文版
  Power Dividers Space Qualified
  ETC
  DS-11880
• DS-11880
  英文版
  Power Dividers Space Qualified
  DS-11880
• DS-109319
  英文版
  Two-Way Power Divider 10 - 500 MHz
  MA-COM
  DS-109319
• DS-109319
  英文版
  Two-Way Power Divider 10 - 500 MHz
  MACOM [Tyc...
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• DS-109PIN
  英文版
  Two-Way Power Divider 10 - 500 MHz
  MA-COM
  DS-109PIN
• DS-109PIN
  英文版
  Two-Way Power Divider 10 - 500 MHz
  MACOM [Tyc...
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• DS-112312
  英文版
  Four-Way Power Dividers 10 - 500 MHz
  MA-COM
  DS-112312
• DS-112312
  英文版
  Four-Way Power Dividers 10 - 500 MHz
  MACOM [Tyc...
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• DS-112PIN
  英文版
  Four-Way Power Dividers 10 - 500 MHz
  MA-COM
  DS-112PIN

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