AT88SC1616C-SH ATMEL [ATMEL Corporation], AT88SC1616C-SH Datasheet - Page 5

• Manufacturer Part Number: AT88SC1616C-SH
• Description: Atmel CryptoMemory, 16Kbit
• Manufacturer: ATMEL [ATMEL Corporation]

4.
Table 3-2.
Applicable over recommended operating range from V
(unless otherwise noted)
Device Operation for Synchronous Protocols
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 Figure 4-3 on page 7). 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 Figure 4-4 on
page 7).
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 4-4 on page 7).
Acknowledge:
All addresses and data words are serially transmitted to and from the EEPROM in 8-bit words. The EEPROM sends a zero to
acknowledge that it has received each word. This happens during the ninth clock cycle (see Figure 4-5 on page 7).
Memory Reset:
After an interruption in protocol, power loss or system reset, any two-wire part can be reset by following these steps:
Symbol
f
f
f
t
t
t
t
t
t
t
t
t
t
t
t
t
CLK
CLK
CLK
R
F
R
F
AA
HD.STA
SU.STA
HD.DAT
SU.DAT
SU.STO
DH
WR
WR
1.
2.
3.
Clock up to nine cycles
Look for SDA high in each cycle while SCL is high
Create a start condition
Parameter
Async Clock Frequency (V
Async Clock Frequency (V
Synch Clock Frequency
Clock Duty cycle
Rise Time - I/O, RST
Fall Time - I/O, RST
Rise Time - CLK
Fall Time - CLK
Clock Low to Data Out Valid
Start Hold Time
Start Set-up Time
Data In Hold Time
Data In Set-up Time
Stop Set-up Time
Data Out Hold Time
Write Cycle Time (at 25° C)
Write Cycle Time (-40° to +85°C)
AC Characteristics
CC
CC
Range: +4.5 - 5.5V)
Range: +2.7 - 3.3V)
CC
= +2.7 to 5.5V, T
Atmel AT88SC1616C [SUMMARY DATASHEET]
AC
= -40°C to +85°C, CL = 30pF
Min
200
200
100
200
40
10
20
1
1
0
9% x period
9% x period
Max
60
35
5
4
1
1
1
5
7
2030LS−CRYPTO−12/11
Units
MHZ
MHZ
MHZ
mS
mS
µS
µS
µS
µS
nS
nS
nS
nS
nS
nS
nS
%
5