Spec. No. : C705Q8
Issued Date : 2007.08.22
Revised Date :
CYStech Electronics Corp.
Page No. : 5/12
AC Characteristics(Cont.)
Applicable over recommended operating range: TA=-40~+85℃, VCC=+1.8V~+5.0V, CL=1TTL Gate & 100pF(unless otherwise noted)
Parameter
Stop Setup Time
Symbol
tSU.STO
Condition
VCC=1.8V
VCC=2.7~5.5V
VCC=1.8V
VCC=2.7~5.5V
VCC=1.8V
VCC=2.7~5.5V
VCC=1.8V
VCC=2.7~5.5V
Min. Typ. Max.
4.7
Unit
-
-
-
-
-
μs
0.6
100
50
Data out Hold Time
Write Cycle Time
tDH
-
ns
5
5
tWR
-
ms
1M
1M
Write
Cycles
Endurance
(Note 1)
5.0V, 25℃, Byte Mode
-
Note: 1. This parameter is characterized and not 100% tested.
Device Operation
Clock and Data Transitions: Transitions on the SDA pin should only occur when SCL is low(refer to the
Data Validity timing diagram in Figure 3). If the SDA pin changes when SCL is high, then the transition
will be interpreted as a START or STOP condition.
START Condition: A START condition occurs when the SDA transitions from high to low when SCL is
high. The START signal is usually used to initiate a command(refer to the START and STOP definition
timing diagram in Fig 4)
STOP Condition: A STOP condition occurs when the SDA transitions from low to high when SCL is high.
(refer to the START and STOP definition timing diagram in Fig 4) The STOP command will put the device
into standby mode after no acknowledgement is issued during the read sequence.
Acknowledge: An acknowledgement is sent by pulling the SDA low to confirm that a word has been
successfully received. All addresses and data words are serially transmitted to and from the EEPROM in
8-bit words, so acknowledgements are usually issued during the 9th clock cycle.
Standby Mode: Standby mode is entered when the chip is initially powered-on or after a STOP command
has been issued and any internal operations have been completed.
Memory Reset: In the event of unexpected power or connection loss, a START condition can be issued to
restart the input command sequence. If the device is currently in write cycle mode, this command will be
ignored.
CTK24BC01-16Q8
CYStek Product Specification
CYSTEKEC [ CYSTECH ELECTONICS CORP. ]
