X1227S8IZ-4.5A
| Model | X1227S8IZ-4.5A |
| Description | 2-Wire RTC Real TimeClock/Calendar/CPU Supervisor with EEPROM |
| PDF file | Total 28 pages (File size: 419K) |
| Chip Manufacturer | INTERSIL |
X1227
(9) V
SDA
=V
SCL
=V
BACK
, Others = GND or V
BACK
(10)V
SDA
= GND or V
CC
, V
SCL
= GND or V
CC
, V
RESET
= GND or V
CC
(11)I
OL
= 3.0mA at 5.5V, 1.5mA at 2.7V
(12)
I
OH
= -1.0mA at 5.5V, -0.4mA at 2.7V
(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
A
= 25°C
Capacitance
T
A
= 25°C, f = 1.0 MHz, V
CC
= 5V
Symbol
C
OUT(1)
C
IN(1)
Parameter
Output Capacitance (SDA, RESET)
Input Capacitance (SCL)
Max.
10
10
Units
pF
pF
Test Conditions
V
OUT
= 0V
V
IN
= 0V
Notes: (1) This parameter is not 100% tested.
(2) The input capacitance between x1 and x2 pins can be varied between 5pF and 19.75pF by using analog trimming registers
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
Figure 1. Standard Output Load for testing the device with V
CC
= 5.0V
Equivalent AC Output Load Circuit for V
CC
= 5V
5.0V
1533Ω
SDA
100pF
For V
OL
= 0.4V
and I
OL
= 3 mA
5
FN8099.1
September 15, 2005
