X1243 Datasheet, PDF (13/17 Pages) Xicor Inc. – Real Time Clock/Calendar/Alarm with EEPROM

X1243
Capacitance (T = 25°C, f = 1.0 MHz, V = 5V)
A
CC
SYMBOL
PARAMETER
C_OUT(1)
Output Capacitance (SDA, IRQ)
C_IN(1)
Input Capacitance (SCL)
NOTE: This parameter is periodically sampled and not 100% tested.
AC Characteristics
AC Test Conditions
Input pulse levels
Input rise and fall times
Input and output timing levels
Output load
V_CC x 0.1 to V_CC x 0.9
10ns
V_CC x 0.5
Standard output load
MAX
8
6
UNIT
pF
pF
TEST CONDITIONS
V_OUT = 0V
V_IN = 0V
Equivalent AC Output Load Circuit for
V_CC = 5V
Standard Output Load for testing the device with
V = 5.0V
CC
5.0V
SDA.
IRQ
1533
For V_OL = 0.4V
and I_OL = 3 mA
100pF
AC Specifications (TA = -40°C to +85°C, VCC = +2.7V to +5.5V, unless otherwise specied.)
400kHz OPTION
SYMBOL
PARAMETER
MIN
f_SCL
t_IN(1)
t_AA
t_BUF
t_LOW
t_HIGH
t_SU:STA
t_HD:STA
t_SU:DAT
t_HD:DAT
t_SU:STO
t_DH
t_R(1)
t_F(1)
Cb
SCL Clock Frequency
Pulse width Suppression Time at inputs
SCL LOW to SDA Data Out Valid
Time the bus must be free before a new transmission can start
Clock LOW Time
Clock HIGH Time
Start Condition Setup Time
Start Condition Hold Time
Data In Setup Time
Data In Hold Time
Stop Condition Setup Time
Data Output Hold Time
SDA and SCL Rise Time
SDA and SCL Fall Time
Capacitive load for each bus line
0
400
50
0.1
0.9
1.3
1.3
0.6
0.6
0.6
100
0
0.6
50
20 + .1Cb⁽²⁾ 300
20 + .1Cb⁽²⁾ 300
400
NOTES:
1. This parameter is periodically sampled and not 100% tested.
2. (Cb = total capacitance of one bus line in pF.
UNIT
kHz
ns
µs
µs
µs
µs
µs
µs
ns
µs
µs
ns
ns
ns
pF
MAX
13
FN8249.0
April 28, 2005