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ST24LC21BB1TR 数据表(PDF) 11 Page - STMicroelectronics |
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ST24LC21BB1TR 数据表(HTML) 11 Page - STMicroelectronics |
11 / 22 page Symbol Alt Parameter Min Max Unit tCH1CH2 tR Clock Rise Time 1 µs tCL1CL2 tF Clock Fall Time 300 ns tDH1DH2 tR Input Rise Time 1 µs tDL1DL1 tF Input Fall Time 300 ns tCHDX (1) tSU:STA Clock High to Input Transition 4.7 µs tCHCL tHIGH Clock Pulse Width High 4 µs tDLCL tHD:STA Input Low to Clock Low (START) 4 µs tCLDX tHD:DAT Clock Low to Input Transition 0 µs tCLCH tLOW Clock Pulse Width Low 4.7 µs tDXCX tSU:DAT Input Transition to Clock Transition 250 ns tCHDH tSU:STO Clock High to Input High (STOP) 4.7 µs tDHDL tBUF Input High to Input Low (Bus Free) 4.7 µs tCLQV (2) tAA Clock Low to Next Data Out Valid 0.2 3.5 µs tCLQX tDH Data Out Hold Time 200 ns fC fSCL Clock Frequency 100 kHz tW tWR Write Time 10 ms Notes: 1. For a reSTART condition, or following a write cycle. 2. The minimum value delays the falling/rising edge of SDA away from SCL = 1 in order to avoid unwanted START and/or STOP conditions. Table 8. AC Characteristics, I2C Bidirectional Mode for Clock Frequency = 100kHz (TA = –40 to 85 °C; VCC = 3.6V to 5.5V) Symbol Alt Parameter Min Max Unit tVCHQX tVAA Output Valid from VCLK 500 ns tVCHVCL tVHIGH VCLK High Time 600 ns tVCLVCH tVLOW VCLK Low Time 1.3 µs tCLQZ tVHZ Mode Tansition Time 500 ns tVPU (1,2) Transmit-only Power-up Time 0 ns tVH1VH2 (2) tR VCLK Rise Time 1 µs tVL1VL2 (2) tF VCLK Fall Time 1 µs tRECOVERY (2) Recovery Time 1.5 3.5 sec Notes: 1. Refer to Figure 3. 2. Sampled only, not 100% tested. Table 9. AC Characteristics, Transmit-only Mode (TA = –40 to 85 °C; VCC = 3.6V to 5.5V) 11/22 ST24LC21B, ST24LW21, ST24FC21, ST24FC21B, ST24FW21 |
类似零件编号 - ST24LC21BB1TR |
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类似说明 - ST24LC21BB1TR |
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