AT24C164_ 데이터 시트보기 (PDF) - Atmel Corporation
부품명
상세내역
일치하는 목록
AT24C164_ Datasheet PDF : 10 Pages
| |||
AC Characteristics
Applicable over recommended operating range from TA = -40°C to +85°C, VCC = +1.8V to +5.5V, CL = 1 TTL Gate and
100 pF (unless otherwise noted).
Symbol
fSCL
tLOW
tHIGH
tI
tAA
tBUF
tHD.STA
tSU.STA
tHD.DAT
tSU.DAT
tR
tF
tSU.STO
tDH
tWR
Parameter
Clock Frequency, SCL
Clock Pulse Width Low
Clock Pulse Width High
Noise Suppression Time (1)
Clock Low to Data Out Valid
Time the bus must be free before a new
transmission can start (1)
Start Hold Time
Start Set-up Time
Data In Hold Time
Data In Set-up Time
Inputs Rise Time (1)
Inputs Fall Time (1)
Stop Set-up Time
Data Out Hold Time
Write Cycle Time
2.7-, 2.5-, 1.8-volt
Min
Max
100
4.7
4.0
100
0.1
4.5
4.7
4.0
4.7
0
200
1.0
300
4.7
100
10
5.0-volt
Min
Max
400
1.2
0.6
50
0.1
0.9
1.2
0.6
0.6
0
100
0.3
300
0.6
50
10
Units
kHz
µs
µs
ns
µs
µs
µs
µs
µs
ns
µs
ns
µs
ns
ms
Device Operation
CLOCK and DATA TRANSITIONS: The SDA pin is nor-
mally pulled high with an external device. Data on the SDA
pin may change only during SCL low time periods (refer to
Data Validity timing diagram). Data changes during SCL
high periods will indicate a start or stop condition as de-
fined below.
START CONDITION: A high-to-low transition of SDA with
SCL high is a start condition which must precede any
other command (refer to Start and Stop Definition timing
diagram).
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 E2PROM in a standby power
mode (refer to Start and Stop Definition timing diagram).
ACKNOWLEDGE: All addresses and data words are se-
rially transmitted to and from the E2PROM in 8 bit words.
The E2PROM sends a zero to acknowledge that it has re-
ceived each word. This happens during the ninth clock cy-
cle.
STANDBY MODE: The AT24C164 features a low power
standby mode which is enabled: a) upon power-up and b)
after the receipt of the STOP bit and the completion of any
internal operations.
2-42
AT24C164
Share Link: 