M24C32-FDW6TP Datasheet, PDF (31/40 Pages) STMicroelectronics – 32-Kbit serial I²C bus EEPROM

M24C32-W M24C32-R M24C32-F M24C32-X M24C32-DF
DC and AC parameters
Table 19. 1 MHz AC characteristics
Symbol Alt.
Parameter⁽¹⁾
Min.
Max.
Unit
f_C
f_SCL Clock frequency
0
1
MHz
t_CHCL
t_HIGH Clock pulse width high
260
-
ns
t_CLCH
t_XH1XH2
t_XL1XL2
t_QL1QL2(3)
t_LOW
t_R
t_F
t_F
Clock pulse width low
Input signal rise time
Input signal fall time
SDA (out) fall time
500
-
ns
(2)
(2)
ns
(2)
(2)
ns
20⁽⁴⁾
120
ns
t_DXCX t_SU:DAT Data in setup time
50
-
ns
t_CLDX
t_CLQX(5)
t_CLQV(6)
t_HD:DAT Data in hold time
t_DH Data out hold time
t_AA Clock low to next data valid (access time)
0
-
ns
100
-
ns
450
ns
t_CHDL t_SU:STA Start condition setup time
250
-
ns
t_DLCL t_HD:STA Start condition hold time
250
-
ns
t_CHDH t_SU:STO Stop condition setup time
250
-
ns
t_DHDL
t_BUF
Time between Stop condition and next Start
condition
500
-
ns
t_WLDL(7)(3) t_SU:WC WC set up time (before the Start condition)
0
t_DHWH(8)(3) t_HD:WC WC hold time (after the Stop condition)
1
t_W
t_WR Write time
-
-
µs
-
µs
5⁽⁹⁾
ms
t_NS(3)
Pulse width ignored (input filter on SCL and
SDA)
-
80
ns
1. Only for M24C32 devices identified by the process letter K (devices qualified at 1 MHz).
2. There is no min. or max. values for the input signal rise and fall times. It is however recommended by the
I²C specification that the input signal rise and fall times be less than 120 ns when f_C < 1 MHz.
3. Characterized only, not tested in production.
4. With C_L = 10 pF.
5. To avoid spurious Start and Stop conditions, a minimum delay is placed between SCL=1 and the falling or
rising edge of SDA.
6. t_CLQV is the time (from the falling edge of SCL) required by the SDA bus line to reach either 0.3 V_CC or
0.7 V_CC, assuming that the Rbus × Cbus time constant is within the values specified in Figure 12.
7. WC=0 set up time condition to enable the execution of a WRITE command.
8. WC=0 hold time condition to enable the execution of a WRITE command.
9. 10 ms for the M24C32-X, when V_CC< 1.7 V.
Doc ID 4578 Rev 21
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