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参数资料
| 型号： | DS2436B |
| 厂商： | DALLAS SEMICONDUCTOR |
| 元件分类： | Memory IC:Other |
| 英文描述： | SPECIALTY MEMORY CIRCUIT, PBCY3 |
| 封装： | TO-92, 3 PIN |
| 文件页数： | 16/29页 |
| 文件大小： | 505K |
| 代理商： | DS2436B |
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DS2436
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NOTES:
1. Temperature conversion takes up to 10 ms.
2. A/D conversion takes up to 10 ms.
3. Temperature and A/D conversions cannot take place simultaneously.
I/O SIGNALING
The DS2436 requires strict protocols to insure data integrity. The protocol consists of several types of
signaling on one line: reset pulse, presence pulse, write 0, write 1, read 0, and read 1. All of these signals,
with the exception of the presence pulse, are initiated by the bus master.
The initialization sequence required to begin any communication with the DS2436 is shown in Figure 8.
A reset pulse followed by a presence pulse indicates the DS2436 is ready to send or receive data given the
correct ROM command and memory function command.
The bus master transmits (TX) a reset pulse (a low signal for a minimum of 480
s). The bus master then
releases the line and goes into a receive mode (RX). The 1-Wire bus is pulled to a high state via the 5k
pullup resistor. After detecting the rising edge on the I/O pin, the DS2436 waits 15-60
s and then
transmits the presence pulse (a low signal for 60-240
s).
READ/WRITE TIME SLOTS
DS2436 data is read and written through the use of time slots to manipulate bits and a command word to
specify the transaction.
Write Time Slots
A write time slot is initiated when the host pulls the data line from a high logic level to a low logic level.
There are two types of write time slots: Write 1 time slots and Write 0 time slots. All write time slots
must be a minimum of 60
s in duration with a minimum of a 1 s recovery time between individual
write cycles.
The DS2436 samples the I/O line in a window from 15
s to 60 s after the I/O line falls. If the line is
high, a Write 1 occurs. If the line is low, a Write 0 occurs (see Figure 9).
For the host to generate a Write 1 time slot, the data line must be pulled to a logic low level and then
released, allowing the data line to pull up to a high level within 15
s after the start of the write time slot.
For the host to generate a Write 0 time slot, the data line must be pulled to a logic low level and remain
low for the duration of the write time slot.
相关PDF资料 |
PDF描述 |
|---|---|
| DS2436Z | SPECIALTY MEMORY CIRCUIT, PDSO8 |
| DS2490S | UNIVERSAL SERIAL BUS CONTROLLER, PDSO24 |
| DS2502P | 128 X 8 OTPROM, PDSO6 |
| DS2502S | 128 X 8 OTPROM, PDSO8 |
| DS2502 | 128 X 8 OTPROM, PBCY3 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2436B/R | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:Battery ID/Monitor Chip |
| DS2436B/T | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:Battery ID/Monitor Chip |
| DS2436B/T&R | 制造商:Maxim Integrated Products 功能描述:BATTERY MONITOR TO-92 T&R - Tape and Reel |
| DS2436B/T&R | 功能描述:电池管理 RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| DS2436B+ | 功能描述:电池管理 RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
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