参数资料
| 型号： | BR24C21FV-E2 |
| 厂商： | Rohm Semiconductor |
| 文件页数： | 4/21页 |
| 文件大小： | 0K |
| 描述： | IC EEPROM EDID 1K 100KHZ 8-SSOP |
| 标准包装： | 1 |
| 格式 - 存储器： | EEPROMs - 串行 |
| 存储器类型： | EEPROM |
| 存储容量： | 1K (128 x 8) |
| 速度： | 400kHz |
| 接口： | I²C，2 线串口 |
| 电源电压： | 2.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 8-LSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 8-SSOPB |
| 包装： | 标准包装 |
| 其它名称： | BR24C21FV-E2DKR |
BR24C21xxx Series (1K)
● Synchronous data timing
Datasheet
t R
t F
t HIGH
SCL
SCL
t HD :STA
t SU :DAT
t LOW
t HD :DAT
SDA
(IN)
SDA
D0
WRITE DATA(n)
ACK
t WR
t BUF
t PD
STOP CONDITION
START CONDITION
SDA
(OUT)
SCL
SCL
Figure 2.
Write Cycle Timing
START BIT
STOP BIT
t SU :STA
tHD:STA
t SU :STO
SDA
SDA
STOP BIT
START BIT
VCLK
Figure 1. Synchronous Data Timing
? SDA data is latched into the chip at the rising edge of the SCL clock.
? Output data toggles at the falling edge of the SCL clock.
t VSU
WRITE COMMAND
t VHD
Figure 3.
Write Enable Timing
● Transmit-only mode
? After power is on, the BR24C21/F/FJ/FV is in Transmit-Only Mode. In this mode data can be output by providing the clock
to the VCLK pin.
? When the power is on, the SCL pin needs to be set to V CC (High level).
? SDA is at high-impedance during input of the first 9 clocks. At the 10th rising clock edge of VCLK data is output. After
power on, the output data is as follows:
00h address data → 01h address data → 02h address data → …
The address is incremented by one, after every 9 clocks of VCLK. All addresses are output in this mode.
When the counter reaches the last address, the next output data is 00h address data. (See Figure 4.)
? In this mode, the NULL bit (High data) is output between the address data and the next address data. (See Figure 5.)
? The read operation is in Transmit-Only Mode and can be started after the power is stabilized.
tVHIGH tVLOW
Vcc
VCLK
SCL
tVPD
VCLK
1
9
10
SDA
D1
D0
D7
D6
ｔVPU
ADDRESS n
DATA
NULL BIT
DATA=1
ADDRESS n+1
DATA
SDA
D7
D6
D5
D4
D3
00h ADDRESS DATA
Figure 4.
Transmit Only Mode
Figure 5.
Null Bit
www.rohm.com
? 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111 ? 15 ? 001
4/18
TSZ02201-0R2R0G100270-1-2
10.Jul.2012 Rev.001
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| BR24C32AN-10SU-1.8 | 制造商:ROHM 制造商全称:Rohm 功能描述:Supply voltage 1.8V~5.5V/Operating temperature -40C~+85C type |
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