|
|
|
• • •
|

|


|
 |

|
Maxim > 方案 > 电信交换机(PBX和中心局)
实时时钟
|
|
| 显示 |
标题/型号 |
关键优势 |
| QV PDF |
3.3V、单芯片、1Mb非易失SRAM,带有时钟 DS3045W

| DS3045W 3.3V单芯片1M非易失SRAM,集成RTC |
| QV PDF |
3.3V、单芯片、256kb非易失SRAM,带有时钟 DS3030W

| DS3030W 3.3V单芯片256k非易失SRAM,集成RTC |
| QV PDF |
3.3V、单芯片、16Mb非易失SRAM,带有时钟 DS3070W

| 业内首款、也是唯一的单芯片、可回流焊接的NV SRAM模块 |
| QV PDF |
低电压SPI/3线接口RTC,带有涓流充电器 DS1390, DS1391, DS1392, DS1393, DS1394

| 低电压、SPI™/3线接口RTC,带有涓流充电器,与同类产品相比具有更多功能和更小尺寸 |
| QV PDF |
带有恒压涓流充电器的RTC DS12CR887, DS12R885, DS12R887

| |
| QV PDF |
I²C RTC,带有涓流充电器 DS1340, DS1340C

| I²C实时时钟,带有涓流充电器,可通过软件进行校准 |
| QV PDF |
I²C RTC,带有56字节NV RAM DS1338, DS1338C, DS1338U, DS1338Z

| |
| QV PDF |
I²C串行实时时钟 DS1339, DS1339C, DS1339U

| RTC的多种可编程特性为系统提供更多灵活性 |
| QV PDF |
I²C串行实时时钟 DS1337, DS1337C

| 业内尺寸最小的I²C RTC,带有两个定时闹钟 |
| QV PDF |
4M、非易失、Y2K兼容的时钟RAM DS1557

| |
| QV PDF |
1M、非易失、Y2K兼容的时钟RAM DS1556, DS1556P

| |
| QV PDF |
256k非易失、Y2K兼容的时钟RAM DS1554

| |
| Key Specifications:
Memory (EPROM, EEPROM, ROM, NV SRAM) |
| Part Number |
Memory Type |
Memory Size |
Bus Type |
Real-Time Clock |
DIP with Internal Battery |
PowerCap Package |
Battery Monitor |
With GPIO |
Single Piece Module |
Features |
Supply Voltage (min) (V) |
Supply Voltage (max) (V) |
|
DS3070W
|
NV SRAM
|
2M x 8
|
Parallel
|
Yes
|
No
|
No
|
No
|
No
|
Yes
|
|
3
|
3.6
|
|
DS3030W
|
NV SRAM
|
32K x 8
|
Parallel
|
Yes
|
No
|
No
|
No
|
No
|
Yes
|
|
3
|
3.6
|
|
DS3045W
|
NV SRAM
|
128K x 8
|
Parallel
|
Yes
|
No
|
No
|
No
|
No
|
Yes
|
|
3
|
3.6
|
| See All Memory (EPROM, EEPROM, ROM, NV SRAM) (69) |
| Key Specifications:
Timekeeping & Real-Time Clocks |
| Part Number |
Functions |
Time Format (hh = sec/100) |
Date Format |
Interface |
Supply Voltage (V) |
Time- keeping Current (typ) (nA) |
CL, Load Capacitance (pF) |
Memory Type |
Memory Size (Bytes) |
Number of Time of Day Alarms |
|
DS3070W
|
|
HH:MM:SS
|
YYYY-MM-DD
|
Bytewide
|
3.3
|
-
|
-
|
NV SRAM
|
2M
|
1
|
|
DS3030W
|
|
HH:MM:SS
|
YYYY-MM-DD
|
Bytewide
|
3.3
|
-
|
-
|
NV SRAM
|
32K
|
1
|
|
DS3045W
|
|
HH:MM:SS
|
YYYY-MM-DD
|
Bytewide
|
3.3
|
-
|
-
|
NV SRAM
|
128K
|
1
|
|
DS1390
|
-
|
HH:MM:SS:hh
|
YY-MM-DD
|
SPI
|
1.8
3
3.3
5
|
500
|
6
|
None
|
-
|
1
|
|
DS1391
|
-
|
HH:MM:SS:hh
|
YY-MM-DD
|
SPI
|
1.8
3
3.3
5
|
500
|
6
|
None
|
-
|
1
|
|
DS1392
|
-
|
HH:MM:SS:hh
|
YY-MM-DD
|
3-Wire
|
1.8
3
3.3
5
|
500
|
6
|
None
|
-
|
1
|
|
DS1393
|
-
|
HH:MM:SS:hh
|
YY-MM-DD
|
3-Wire
|
1.8
3
3.3
5
|
500
|
6
|
None
|
-
|
1
|
|
DS12CR887
|
-
|
HH:MM:SS
|
YY-MM-DD
|
Multiplexed
|
3.3
5
|
-
|
-
|
NV SRAM
|
114
|
1
|
|
DS12R885
|
-
|
HH:MM:SS
|
YY-MM-DD
|
Multiplexed
|
3.3
5
|
800
|
12.5
|
NV SRAM
|
114
|
1
|
|
DS12R887
|
-
|
HH:MM:SS
|
YY-MM-DD
|
Multiplexed
|
3.3
5
|
-
|
-
|
NV SRAM
|
114
|
1
|
|
DS1340
|
-
|
HH:MM:SS
|
YY-MM-DD
|
I2C
|
1.8
3
3.3
5
|
800
|
12.5
|
None
|
-
|
0
|
|
DS1338
|
-
|
HH:MM:SS
|
YY-MM-DD
|
I2C
|
1.8
3
3.3
5
|
800
|
12.5
|
NV SRAM
|
56
|
0
|
|
DS1339
|
-
|
HH:MM:SS
|
YY-MM-DD
|
I2C
|
2
3
3.3
5
|
400
|
6
|
None
|
-
|
2
|
|
DS1337
|
-
|
HH:MM:SS
|
YY-MM-DD
|
I2C
|
2
3
3.3
5
|
425
|
6
|
None
|
-
|
2
|
|
DS1554
|
|
HH:MM:SS
|
YYYY-MM-DD
|
Bytewide
|
3.3
5
|
-
|
-
|
NV SRAM
|
32K
|
1
|
|
DS1556
|
|
HH:MM:SS
|
YYYY-MM-DD
|
Bytewide
|
3.3
5
|
-
|
-
|
NV SRAM
|
128K
|
1
|
|
DS1557
|
|
HH:MM:SS
|
YYYY-MM-DD
|
Bytewide
|
3.3
5
|
-
|
-
|
NV SRAM
|
512K
|
1
|
| See All Timekeeping & Real-Time Clocks (86) |
|
|


|
隐私权政策
•
法律声明

© 2008 Maxim Integrated Products, Dallas Semiconductor版权所有
|

|
|
|

|