AT24C21_03 Datasheet, PDF (4/17 Pages) ATMEL Corporation – 2-wire Serial EEPROM

Transmit-only Mode
Symbol
T_VAA
T_VHIGH
T_VLOW
T_VHZ
T_VPU
Parameter
Output valid from VCLK
VCLK high-time
VCLK low-time
Mode transition time
Transmit-only power-up time
2.5-volt
Min
Max
500
4.0
4.7
500
0
Units
ns
µs
µs
ns
ns
AC Characteristics
Applicable over recommended operating range from T_A = -40°C to +85°C, V_CC = +2.5V to +5.5V C_L = 1 TTL Gate and
100 pF (unless otherwise noted).
2.5-volt
Symbol
Parameter
Min
Max
Units
f_SCL
Clock Frequency, SCL
0
t_LOW
Clock Pulse Width Low
4.7
t_HIGH
Clock Pulse Width High
4.0
t_I
Noise Suppression Time⁽¹⁾ (SDA and SCL pins)
t_AA
Clock Low to Data Out Valid
0.1
t_BUF
Time the bus must be free before a new transmission can start
4.7
t_HD.STA
Start Hold Time
4.0
t_SU.STA
Start Set-up Time
4.7
t_HD.DAT
Data In Hold Time
0
t_SU.DAT
Data In Set-up Time
250
t_R
Inputs Rise Time⁽¹⁾
t_F
Inputs Fall Time⁽¹⁾
t_SU.STO
Stop Set-up Time
4.0
t_DH
Data Out Hold Time
100
t_WR
Write Cycle Time
Endurance⁽¹⁾ 5.0V, 25°C, Page Mode
1M
Note: 1. This parameter is characterized and is not 100% tested.
100
kHz
µs
µs
NA
ns
3.5
µs
µs
µs
µs
µs
ns
1.0
µs
300
ns
µs
ns
10
ms
Write Cycles
4 AT24C21
0405I–SEEPR–7/03