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參數資料
| 型號： | DS2423X |
| 廠商： | DALLAS SEMICONDUCTOR |
| 元件分類： | Memory IC:Other |
| 英文描述： | SPECIALTY MEMORY CIRCUIT, UUC |
| 封裝： | CHIP SCALE PKG |
| 文件頁數： | 1/25頁 |
| 文件大小： | 579K |
| 代理商： | DS2423X |
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090799
FEATURES
§ 4096 bits of SRAM (DS2423), 1024 bits with
the DS2422
§ Four 32-bit, read-only counters (DS2423),
three counters with the DS2422
§ Active-low external trigger inputs for two of
the counters with on-chip debouncing
compatible with reed and Wiegand switches
§ Unique, factory-lasered and tested 64-bit
registration number (8-bit family code + 48-
bit serial number + 8-bit CRC tester) assures
absolute traceability because no two parts are
alike
§ Memory partitioned into 16 256-bit pages in
DS2423 (4 pages in DS2422) for packetizing
data
§ 256-bit scratchpad with strict read/write
protocols ensures integrity of data transfer
§ On-chip 16-bit CRC generator for
safeguarding data transfers
§ Built-in multidrop controller ensures
compatibility with other MicroLAN products
§ Directly connects to a single port pin of a
microprocessor and communicates at up to
16.3 kbits per second
§ Overdrive mode boosts communication speed
to 142 kbits per second
§ 8-bit family code specifies device
communication requirements to reader
§ Presence detector acknowledges when reader
first applies voltage
§ Compact, low cost 6-pin TSOC surface mount
package
§ Reads, writes and counts over a wide voltage
range of 2.8V to 5.5V from -40°C to +85°C
PIN ASSIGNMENT
PIN DESCRIPTION
Pin 1
Ground
Pin 2
Data
Pin 3
Vbat
Pin 4
NC
Pin 5
Input channel B
Pin 6
Input channel A
ORDERING INFORMATION
DS2423P
6-pin TSOC package
DS2423V
Tape & Reel Version of DS2423P
DS2423X
Chip Scale Pkg., Tape & Reel
DS2422P
Contact Factory
DESCRIPTION
The DS2422/DS2423 1-Wire RAM with Counters (hereafter referred to as DS242X) is a fully static,
read/write memory for battery operation in a low-cost, six-lead TSOC surface-mount package. The
memory is organized as 16 pages (DS2423) or four pages (DS2422) of 256 bits each. In addition, the
device has four (DS2423) or three (DS2422) counters, two of them with external trigger inputs called A
and B. Each of the counters is associated with a memory page. A counter without external trigger input
increments each time data is written to the page it is associated with (Write Cycle Counter). The counters
triggered by inputs A and B, respectively, increment with every low-going pulse on their input. All
counters are read-only. They are automatically cleared to 0 when the battery is connected.
DS2422/DS2423
1-kbit/4-kbit 1-Wire
TM
RAM with Counter
www.dalsemi.com
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2
3
6
5
4
TOP VIEW
3.7 X 4.0 X 1.5 mm
SIDE VIEW
TSOC PACKAGE
相關PDF資料 |
PDF描述 |
|---|---|
| DS2423 | 4K X 1 STANDARD SRAM, PDSO6 |
| DS2422 | 1K X 1 STANDARD SRAM, PDSO6 |
| DS2430AP | 256 X 1 1-WIRE SERIAL EEPROM, PDSO6 |
| DS2430A | 32 X 8 1-WIRE SERIAL EEPROM, PBCY3 |
| DS2430AX | 32 X 8 1-WIRE SERIAL EEPROM, UUC2 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| DS243 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
| DS2430 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:256-Bit 1-Wire EEPROM |
| DS2430A | 功能描述:電可擦除可編程只讀存儲器 RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數據保留:100 yr 最大時鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| DS2430A R | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:256-Bit 1-Wire EEPROM |
| DS2430A T | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:256-Bit 1-Wire EEPROM |
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