参数资料
| 型号： | BD8132FV-E2 |
| 厂商： | Rohm Semiconductor |
| 文件页数： | 14/23页 |
| 文件大小： | 0K |
| 描述： | IC PWR SUP CORRECTION SSOP-B40 |
| 标准包装： | 2,000 |
| 系列： | * |
BD8132FV, BD8139AEFV
Technical Note
● Timing Chart
Fig. 31 2-wire serial Timing Chart (Auto-Read)
Only the EEPROM device address A3 = A2 = A1 = low is supported.
The auto-read function specifies the read start word address in EEPROM write mode. Then after resending the start signal,
the data is read in read mode. When the parity check detects an error, a stop signal is sent and the auto-read function is
repeated until no error is detected.If the auto-read function never completes, the EEPROM data settings should be reviewed.
? When operating in auto-read mode, a maximum of 2 BD8139AEFV ICs (A and B) can be connected to the I 2 C bus line.
When using 2 ICs, change the CT pin capacitance value to avoid auto-read timing collisions. The following figure
illustrates auto-read timing when using 2 ICs.
DVCC
CT(A)
CT(B)
Autoread(A)
Error(A)
Autoread(B)
Error(B)
Fig 32 Auto-Read Timing Chart
Set the CT pin capacitance as follows:
Using an inappropriate capacitance setting may result in auto-read timing collisions, making it impossible to read data properly.
BD8139AEFV A CT = 1000 pF
Scatter: Within 5%
BD8139AEFV
B
CT = 3300 pF
Scatter: Within 5%
● 2 wire serial bus data timing
SCL
t R
t F
t HIGH
t HD :STA
t SU :DAT
t LOW
t HD :DAT
SDA
(IN)
SDA
(OUT)
SCL
t BUF
t PD
t DH
t SU :STA
t HD :STA
t I
t SU :STO
SDA
START BIT
* SDA latches at the SCL rising edge.
Fig 33
STOP BIT
www.rohm.com
? 2009 ROHM Co., Ltd. All rights reserved.
14/20
2009.07 - Rev.B
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相关代理商/技术参数 |
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| BD8138EFV | 制造商:ROHM 制造商全称:Rohm 功能描述:y-correction IC for TFT-LCD Panel |
| BD8139AEFV | 制造商:ROHM 制造商全称:Rohm 功能描述:High-precision Gamma Correction ICs with built-in DAC |
| BD8139AEFV-E2 | 功能描述:IC GAMMA CORRECTION 40SSOP 制造商:rohm semiconductor 系列:- 包装:剪切带（CT） 零件状态:有效 类型:TFT-LCD 稳压器 应用:视频 安装类型:表面贴装 封装/外壳:40-VSSOP（0.213"，5.40mm 宽）裸焊盘 供应商器件封装:40-HTSSOP-B 标准包装:1 |
| BD8139EFV | 制造商:ROHM 制造商全称:Rohm 功能描述:y-correction IC for TFT-LCD Panel |
| BD814 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:TRANSISTOR | BJT | PNP | 45V V(BR)CEO | 2A I(C) | TO-202 |
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