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ST24LW21M1 View Datasheet(PDF) - STMicroelectronics

Part NameDescriptionManufacturer
ST24LW21M1 1 Kbit (x8) Dual Mode Serial EEPROM for VESA PLUG & PLAY ST-Microelectronics
STMicroelectronics ST-Microelectronics
ST24LW21M1 Datasheet PDF : 22 Pages
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ST24LC21B, ST24LW21, ST24FC21, ST24FC21B, ST24FW21
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
tCH1CH2
tR
Clock Rise Time
1
µs
tCL1CL2
tF
Clock Fall Time
300
ns
tDH1DH2
tR
Input Rise Time
1
µs
tDL1DL1
tCHDX (1)
tF
tSU:STA
Input Fall Time
Clock High to Input Transition
300
ns
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
tCLQV (2)
tBUF
Input High to Input Low (Bus Free)
tAA
Clock Low to Next Data Out Valid
4.7
µs
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 9. AC Characteristics, Transmit-only Mode
(TA = –40 to 85 °C; VCC = 3.6V to 5.5V)
Symbol
Alt
Parameter
tVCHQX
tVAA
Output Valid from VCLK
tVCHVCL
tVHIGH
VCLK High Time
tVCLVCH
tVLOW
VCLK Low Time
tCLQZ
tVHZ
Mode Tansition Time
tVPU (1,2)
Transmit-only Power-up Time
tVH1VH2 (2)
tR
VCLK Rise Time
tVL1VL2 (2)
tF
VCLK Fall Time
tRECOVERY (2)
Recovery Time
Notes: 1. Refer to Figure 3.
2. Sampled only, not 100% tested.
Min
Max
Unit
500
ns
600
ns
1.3
µs
500
ns
0
ns
1
µs
1
µs
1.5
3.5
sec
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