Typical values represent average readings at 25°C and V
DD
= 5 V.
Rev. 0 | Page 4 of 24
AD5258
TIMING CHARACTERISTICS
V
DD
= V
LOGIC
= 5 V ± 10%, or 3 V ± 10%; V
A
= V
DD
; V
B
= 0 V; −40°C < T
A
< +85°C, unless otherwise noted.
Table 2.
Parameter
I
2
C INTERFACE TIMING CHARACTERISTICS
SCL Clock Frequency
t
BUF
Bus Free Time between STOP and START
t
HD;STA
Hold Time (Repeated START)
t
LOW
Low Period of SCL Clock
t
HIGH
High Period of SCL Clock
t
SU;STA
Setup Time for Repeated START
Condition
t
HD;DAT
Data Hold Time
t
SU;DAT
Data Setup Time
t
F
Fall Time of Both SDA and SCL Signals
t
R
Rise Time of Both SDA and SCL Signals
t
SU;STO
Setup Time for STOP Condition
EEPROM Data Storing Time
EEPROM Data Restoring Time at Power On
1
Symbol
f
SCL
t
1
t
2
t
3
t
4
t
5
t
6
t
7
t
8
t
9
t
10
t
EEMEM_STORE
t
EEMEM_RESTORE1
Conditions
Min
0
1.3
0.6
1.3
0.6
0.6
0
100
0.9
300
300
0.6
V
DD
rise time dependant. Measure
without decoupling capacitors at V
DD
and
GND.
V
DD
= 5 V.
26
300
Typ
Max
400
Unit
kHz
µs
µs
µs
µs
µs
µs
ns
ns
ns
µs
ms
µs
After this period, the first clock pulse is
generated.
EEPROM Data Restoring Time upon Restore
Command
1
EEPROM Data Rewritable Time
2
FLASH/EE MEMORY RELIABILITY
Endurance
3
Data Retention
4
1
2
t
EEMEM_RESTORE2
t
EEMEM_REWRITE
300
540
100
700
100
µs
µs
kCycles
Years
During power-up, the output is momentarily preset to midscale before restoring EEPROM content.
Delay time after power-on PRESET prior to writing new EEPROM data.
3
Endurance is qualified to 100,000 cycles per JEDEC Std. 22 method A117, and is measured at –40°C, +25°C, and +85°C; typical endurance at +25°C is 700,000 cycles.
4
Retention lifetime equivalent at junction temperature (T
J
) = 55°C per JEDEC Std. 22, Method A117. Retention lifetime based on an activation energy of 0.6eV derates
An ideal triangle wave involves infinite d2V/dt2, so a high-fidelity triangle wave should have an extremely wide bandwidth. Micropower circuits have a fairly narrow bandwidth, so generating a good tri...
I would like to introduce a VGA driver board that can be controlled by a single-chip microcomputer - the intelligent VGA control board. It can not only easily control large-size LCDs to display charac...
This is my first time using STM32. I finally got the newly installed MDK5.14 to debug normally after a lot of trouble. I'm posting the referenced file for your reference....
[b][color=red]I will publish the schematic diagram when this post reaches the 100th floor. Please encourage me. [/color][/b] I don't know if there are many friends here who do security. I caught a col...
I have made a new battery expansion board, which can turn the microbit into a watch, bracelet, pedometer, and Bluetooth controller, which is suitable for children to learn....
UHF and HF are both general technology categories, but each category has independent supporting protocols. HF is more consistent in the 13.56MHz frequency band, although there are many internation...[Details]
Calibrators are widely used in university experiments. Among them, there are two experiments in nuclear physics experiments in modern physics experiments (GM counter and β absorption) that require ...[Details]
Although improper medical device product design is not always associated with medical device-related errors. Studies of users have shown that lack of adequate training accounts for 70% to 90% of suc...[Details]
Until now, designers have faced a trade-off in ADC selection. Pipeline converters offer high resolution and wide dynamic range, but their power consumption is quite high. The alternative, discrete ...[Details]
No other sector is feeling the pressure for change more acutely than the healthcare industry. Healthcare organizations and services are desperate to reduce costs, but the challenge is to do so without...[Details]
For more than 10 years, analog-to-digital converters (ADCs) have been widely used in industrial process control, medical instruments, communication systems, radar and other products as a booster of in...[Details]
This article discusses how to use an ultra-low-power RF transceiver chip from Zarlink Semiconductor for pacemakers, neurostimulators, drug pumps, and other such implantable medical devices t...[Details]
With the rapid development of computer technology, embedded image systems are widely used in office equipment, manufacturing and process design, medical, monitoring, sanitary equipment, transportat...[Details]
Over the past 15 to 20 years, automotive power MOSFETs have evolved from an initial technical topic to a thriving commercial sector. Power MOSFETs were chosen because they can withstand transient ...[Details]
0Introduction
In oil drilling, accurate measurement of wellbore posture is the premise of wellbore trajectory control. To this end, this paper fully combines the advantages of single-chip ...[Details]
The overcurrent and overheating coordinated protection technology implemented by polymer positive temperature coefficient devices (PPTC) can protect motors, controllers and electronic components in...[Details]
Preface
Phase-modulated pulse signals can achieve a large compression ratio. As a commonly used pulse compression signal, they are widely used in modern radar and communication systems. Wi...[Details]
Multi-parameter monitor is an important device in clinical nursing. It can monitor the patient's ECG, blood pressure, blood oxygen saturation, respiratory rate, pulse rate and temperature. At present,...[Details]
At present, the IEEE802.11 wireless LAN standard is widely used in voice communication, wireless office and other fields, but it is still mainly limited to wireless communication on general platfor...[Details]
introduction
The data detected by various
measuring instruments
often need to be transferred to a PC for data processing and archiving, so as to make full use of the rich hardware an...[Details]
Analog electronics
京公网安备 11010802033920号
EEWORLD
