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BL24C16 데이터시트 PDF




BELLING에서 제조한 전자 부품 BL24C16은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

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부품번호 BL24C16 기능
기능 Two-wire Serial EEPROM
제조업체 BELLING
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BL24C16 데이터시트, 핀배열, 회로
Shanghai Belling Corp., Ltd
BL24C02/04/08/16
BL24C02/BL24C04/BL24C08/BL24C16
2K bits (256 X 8) / 4K bits (512 X 8) / 8K bits (1024 X 8) / 16K bits (2048 X 8)
Two-wire Serial EEPROM
Features
Two-wire Serial Interface
VCC = 1.7V to 5.5V
Bi-directional Data Transfer Protocol
Internally Organized
BL24C02, 256 X 8 (2K bits)
BL24C04, 512 X 8 (4K bits)
BL24C08, 1024 X 8 (8K bits)
BL24C16, 2048 X 8 (16K bits)
1 MHz (5V), 400 kHz (1.8V, 2.5V, 2.7V) Compatibility
8-byte Page (2K), 16-byte Page (4K, 8K, 16K) Write Modes
Self-timed Write Cycle (5 ms max)
1 Million Write Cycles guaranteed
Data Retention > 100 Years
Operating Temperature: -40to +85
8-lead PDIP, 8-lead SOP , 5-lead TSOT 23-5
and 8-lead TSSOP Packages
5-lead TSOT23-5
Description
BL24C02/BL24C04/BL24C08/BL24C16 provides 2048/4096/8192/16384 bits of serial electrically
erasable and programmable read-only memory (EEPROM) organized as 256/512/1024/2048 words of 8
bits each. The device is optimized for use in many industrial and commercial applications where
low-power and low-voltage operations are essential. The BL24C02/BL24C04/BL24C08/BL24C16 is
available in space-saving 8-lead PDIP, 8-lead SOP, 8-lead TSSOP and 5-lead TSOT23-5 packages
and is accessed via a two-wire serial interface.
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BL24C16 pdf, 반도체, 판매, 대치품
Shanghai Belling Corp., Ltd
BL24C02/04/08/16
Device Operation
CLOCK and DATA TRANSITIONS: The SDA pin is normally pulled high with an external device. Data
on the SDA pin may change only during SCL low time periods (see to Figure 1 on page 4). Data changes
during SCL high periods will indicate a start or stop condition as defined below.
START CONDITION: A high-to-low transition of SDA with SCL high is a start condition which must
precede any other command (see to Figure 2 on page 4).
STOP CONDITION: A low-to-high transition of SDA with SCL high is a stop condition. After a read
sequence, the stop command will place the EEPROM in a standby power mode (see Figure 2 on page
4).
ACKNOWLEDGE: All addresses and data words are serially transmitted to and from the EEPROM in
8-bit words. The EEPROM sends a "0" to acknowledge that it has received each word. This happens
during the ninth clock cycle. STANDBY MODE: The K24C02/K24C04/K24C08/K24C16 features a
low-power standby mode which is enabled: (a) upon power-up and (b) after the receipt of the STOP bit
and the completion of any internal operations
MEMORY RESET: After an interruption in protocol, power loss or system reset, any two-wire part can be
reset by following these steps:
1. Clock up to 9 cycles.
2. Look for SDA high in each cycle while SCL is high.
3. Create a start condition.
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BL24C16 전자부품, 판매, 대치품
Shanghai Belling Corp., Ltd
BL24C02/04/08/16
Once the device address with the read/write select bit set to "1" is clocked in and acknowledged by the
EEPROM, the current address data word is serially clocked out. The microcontroller does not respond
with an input "0" but does generate a following stop condition (see Figure 7 on page 8).
Read Operations
RANDOM READ: A random read requires a "dummy" byte write sequence to load in the data word
address. Once the device address word and data word address are clocked in and acknowledged by the
EEPROM, the microcontroller must generate another start condition. The microcontroller now initiates a
current address read by sending a device address with the read/write select bit high. The EEPROM
acknowledges the device address and serially clocks out the data word. The microcontroller does not
respond with a "0" but does generate a following stop condition (see Figure 8 on page 8).
SEQUENTIAL READ: Sequential reads are initiated by either a current address read or a random
address read. After the microcontroller receives a data word, it responds with an acknowledge. As long
as the EEPROM receives an acknowledge, it will continue to increment the data word address and
serially clock out sequential data words. When the memory address limit is reached, the data word
address will "roll over" and the sequential read will continue. The sequential read operation is terminated
when the microcontroller does not respond with a "0" but does generate a following stop condition (see
Figure 9 on page 8).
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