X1288 Xicor, X1288 Datasheet - Page 6

• Manufacturer Part Number: X1288
• Description: 2-Wire RTC Real Time Clock/Calendar/CPU Supervisor with EEPROM
• Manufacturer: Xicor

Preliminary Information
Notes: (1) The device enters the Active state after any start, and remains active: for 9 clock cycles if the Device Select Bits in the Slave
Capacitance T
Notes: (1) This parameter is not 100% tested.
AC CHARACTERISTICS
AC Test Conditions
Figure 1. Standard Output Load for testing the device with V
REV 1.1.30 3/24/04
Input Pulse Levels
Input Rise and Fall Times
Input and Output Timing
Levels
Output Load
Symbol
C
Equivalent AC Output Load Circuit for V
C
OUT
IN
(2) The device enters the Program state 200nS after a stop ending a write operation and continues for t
(3) The device goes into the Timekeeping state 200nS after any stop, except those that initiate a nonvolatile write cycle; t
(4) For reference only and not tested.
(5) V
(6) V
(7) V
(8) V
(9) V
(10)V
(11)I
(12)
(13)Threshold voltages based on the higher of Vcc or Vback.
(14)Using recommended crystal and oscillator network applied to X1 and X2 (25°C).
(15)Typical values are for T
(2) The input capacitance between x1 and x2 pins can be varied between 5pF and 19.75pF by using analog trimming registers
(1)
(1)
SDA
Address Byte are incorrect or until 200nS after a stop ending a read or write operation.
stop that initiates a nonvolatile write cycle; or 9 clock cycles after any start that is not followed by the correct Device Select Bits in
the Slave Address Byte.
OL
IL
CC
BACK
SDA
SDA
SDA
= V
= 3.0mA at 5.5V, 1.5mA at 2.7V
Output Capacitance (SDA, PHZ/IRQ, RESET)
Input Capacitance (SCL)
= 0V
= V
=V
= GND or V
CC
A
= 0V
SCL
SCL
= 25°C, f = 1.0 MHz, V
x 0.1, V
=V
=V
5.0V
BACK
CC
CC
IH
, Others = GND or V
I
OH
1533Ω
100pF
= V
, V
, Others = GND or V
= -1.0mA at 5.5V, -0.4mA at 2.7V
A
SCL
CC
= 25°C
x 0.9, f
= GND or V
Parameter
V
10ns
V
Standard Output Load
CC
CC
For V
and I
SCL
x 0.1 to V
x 0.5
OL
OL
CC
= 400KHz
CC
CC
= 0.4V
= 3 mA
BACK
, V
CC
= 5V
RESET
= 5V
CC
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x 0.9
= GND or V
CC
PHZ/IRQ
CC
Max.
10
10
= 5.0V
5.0V
Units
pF
pF
1316Ω
806Ω
WC
.
Test Conditions
100pF
V
V
OUT
IN
= 0V
= 0V
X1288
WC
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