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부품번호 | IZ1325 기능 |
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기능 | High-precision Real Time Clock circuit | ||
제조업체 | Integral | ||
로고 | |||
IZ1325
High-precision Real Time Clock circuit
with thermal compensation and built-in quartz resonator
(Functional analogue of RX8025SA by Company « Epson Toyocom »)
The IZ1325 high-precision real-time clock circuit with thermal compensation and built-in quartz
resonator, provides high accuracy counting the current time of the, generation of 6 system inter-
ruptions and two independent event signals. The device provides both 24/12-hour operation
modes and contains the built-in supply control circuit, frequency adjustment circuit for high ac-
curacy of the system generator. The IZ1325 support data and command exchange by means of
standard 2-wire interface (I2C-bus).
The IC is applied in the wide range of the industrial and household equipment and appli-
ances, where it is required to counting and processing of the system current time data.
Main functions:
• seconds, minites hours, weekday, date, month and year time counting;
• two operational modes12/24-hours;
• data and command exchange via 2-wire I2C-bus serial interface;
• 6 system interrupts generation;
• 2 independent alarms: day, hours, minutes and hours, minutes;
• supply voltage and system generator frequency monitoring.
Main features:
• Supply voltage, UDD, 1,7 … 5,5 V
• Oscilator operating supply voltage UCLK, 1,15 … 5,5 V
• Operating temperature range -40 to +85 °С
Table 1 – Contact pad description
Contact
pad num-
ber
01
02
03
04
05
06
07
08
09
10
11
Symbol
GND
INTA
X1
X2
FOE
VDD
TEST
FOUT
SCL
SDA
INTB
Description
Ground
Interrupt output A
Quartz resonator input
Quartz resonator output
Control input
Power supply
Test terminal
32.768 kHz clock output
I2C bus clock input
I2C bus input-output
Interrupt output B
Ver.1.0/02.11.2010
1 IZ1325-TSe
549888
www.bms.by
Table 4 − Electric parameters
Parameter, unit
Symbol
Mode of measurements
Output high current, mA
Output low current, mA
Input leakage current,
μA
Input current, μA
OFF-state output cur-
rent, μA
Dynamic consumption
current, μA
Consumption current,
μA
IOH
IOL1
IOL2
IOL3
II
IIFOE
IOZ
IDDS1
IDDS2
IDD
Pin FOUT
UOH= UDD-0,5
UDD = 3 V
Pin FOUT
UOL = 0,4 V
UDD = 3 V
Pins INTA, INTB
UOL = 0,4 V
UDD = 3 V
Pin SDA
UOL = 0,4 V
UDD = 3 V
Pin SCL
UDD = 5,5 V
UI = 0 V
UI = 5,5 V
Pin FOE
UDD = 5,5 V
Pins SDA, INTA, INTB
UDD = 5,5 V
UO = 0 V
UO = 5,5 V
UDD = 3,0 V
UDD = 5,0 V
UDD = 5,5 V
fFOUT = 32,768 kHz
IZ1325
Targets
Min Max
- -0,5
0,5 −
1,0 −
4,0 −
Ambient
tempera-
ture,
oC
25±10
85
-40
- |±1,0|
− 1,0
− |±1,0|
−
− 1,8
− 6,5
Table 5 – Typical values of electric parameters Ta = 25 °С
Parameter, unit
Symbol
Mode of measurements
Dynamic consumption current, μA IDDS1
fSCL= 0 Hz, pin FOUT not connected,
without load,
0 V applied to pin FOE,
3,0 V applied to pins INTA, INTB, VDD
Frequency deviation, ×10−6 Δf/f UDD = 3,0 V
Frequency voltage characteristic,
×10−6/В
Δf/V
UDD = 2,0 … 5,0 V
Frequency temperature charac-
teristic, ×10−6
ΔfTOP
UDD = 3,0 V
Oscilator start-up time, s
tSTA UDD = 2,0 V
1) Typical value is arithmetic mean of parameter value, of measured sampling
Typical
value1)
0,48
±5
±1
from -120
to +10
not more 1
Ver.1.0/02.11.2010
4 IZ1325-TSe
549888
www.bms.by
4페이지 2- Wire Serial Data Bus
IZ1325
IZ1325 supports the bi-directional 2-wire bus and the data transfer protocol. The bus can be controlled by
the “master” device, which generates the clock signal SCL, controls access to the bus, generates the conditions
START and STOP.
UDD
R1 R2
SDA
SCL
2-wire serial
data bus
MPU
SDA
SCL
IZ1325
X1 X2
ZQ1
Another
peripherial
device
ZQ1 – quartz resonator С-002RX or C-004R from «Epson Toyocom», Japan
R1, R2 – resistors (R1 = R2)
Fig. 4 – Typical configuration of 2- wire bus
Data transfer can be started only when the bus is not busy. In the process of the data transfer,
the data line should remain stable, while the clock line is HIGH. Transition of the data line, while
the clock is HIGH will be interpreted as control signals.
START and STOP conditions
A HIGH-to-LOW transition of the data line, while the clock line is HIGH, is defined as the
START condition (Data transfer start)
A LOW-to-HIGH transition of the data line while the clock line is HIGH is defined as the STOP
condition (Data transfer stop).
A HIGH-to-LOW transition of the data line, while the clock line is HIGH, is defined as the
RESTART condition (Repeated start condition)
STOP to START condition recovery time tRCV ≥ 62 μs.
Ver.1.0/02.11.2010
7 IZ1325-TSe
549888
www.bms.by
7페이지 | |||
구 성 | 총 12 페이지수 | ||
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구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
IZ1325 | High-precision Real Time Clock circuit | Integral |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |