- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄372534 > X4165V8I-2.7 (INTERSIL CORP) CPU Supervisor with 16K EEPROM PDF資料下載
參數(shù)資料
| 型號： | X4165V8I-2.7 |
| 廠商： | INTERSIL CORP |
| 元件分類： | 電源管理 |
| 英文描述： | CPU Supervisor with 16K EEPROM |
| 中文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8 |
| 封裝： | PLASTIC, MO-153AC, TSSOP-8 |
| 文件頁數(shù)： | 3/23頁 |
| 文件大?。?/td> | 118K |
| 代理商： | X4165V8I-2.7 |
X46402
Characteristics subject to change without notice.
3 of 23
Watchdog Timer
The Watchdog Timer circuit monitors the microproces-
sor activity by monitoring the Start bit. The micropro-
cessor must send a start bit periodically to prevent a
RESET signal. The start bit must occur prior to the
expiration of the watchdog time-out period. The state
of three nonvolatile control bits in the Control Register
determines the watchdog timer period. The micropro-
cessor can change these watchdog bits, or they may
be “l(fā)ocked” by tying the WP pin HIGH and setting the
WPEN bit HIGH.
ARCHITECTURE
Data Memory
This 64kbit memory array can be partitioned into pass-
word protected or non-password protected areas.
When password protected, the contents are readable
after sending a “Memory Read” password. The con-
tents of a password protected portion of the memory
array are writeable with a “Memory Write” Password.
This array is re-writable up to the limit of the EEPROM
endurance.
OTP
The second section of memory consists of two 64-byte
arrays, each writable only once. These arrays are
always password protected. Reading from either of
these arrays requires the use of an “OTP Read” pass-
word. Both arrays can be read with a single operation.
Writing either array requires an “OTP Write” Password.
Writing more than 64 bytes to each array results in the
data “wrapping” around and over-writing previous values.
Control Register
A password protected read or write array command at
address FFFFh reads or writes the Control Register.
Since the control register contains information relating
to the password protection, it is necessary to use the
Array passwords to access the control register.
The Control Register contains bits that control the
watchdog timer and the hardware write protect fea-
tures and is formatted as follows:
Write Protect Enable bit (WPEN)
The WP pin, in conjuction with a WPEN bit pro-
grammed HIGH, provides Hardware Write Protection.
This prevents changes to the control register contents
even with a valid password. When either the WP pin or
WPEN bit is LOW, a 64 bit Array write array password
is required to change the contents of the control regis-
ter. When both the WP pin and the WPEN bit are
HIGH, the Control Register cannot be written.
Flag Bit
The flag bit is a volatile bit. It can be used to determine
if a reset condition was due to a power failure or
watchdog reset condition. If power fails (i.e. the inter-
nal low voltage detect signal goes active), the bit is set
to ’0’. This bit is also set or reset by a Control Register
write operation. A watchdog reset does not change the
state of the flag bit.
Watchdog Timer Control
The Watchdog time-out period is controlled by the bits
WD2, WD1, and WD0. See the following Table.
Array
Address
0000h - 003Fh
0040h - 007Fh
OTP Array 1
OTP Array 2
V2FAIL
RESET
V
SS
WP
SDA
V2MON
SCL
V
CC
Volt
Reg
V
CC
SCL
SDA
INTR
RESET
μC
OTP Mode
Enabled
Recommended Connection
Pin1
7
6
5
4
3
2
1
0
WPEN
FLB
WD2 WD1 WD0
BL2
BL1
BL0
Table 1. Watchdog Time Control Bits
Control Register Bits
WD2
WD1
0
0
0
0
0
1
0
1
1
0
1
0
1
1
1
1
Watchdog Time-Out
(Typical)
1 Second
450 Milliseconds
150 Milliseconds
Disabled
1 minute
20 seconds
10 seconds
5 seconds
WD0
0
1
0
1
0
1
0
1
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| X4283(中文) | RTC Module With CPU Supervisor |
| X4283 | RTC Module With CPU Supervisor |
| X4323 | RTC Module With CPU Supervisor |
| X4325 | RTC Module With CPU Supervisor |
| X4643(中文) | RTC Module With CPU Supervisor |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| X4165V8I-4.5A | 功能描述:IC SUPERVISOR CPU 16K EE 8-TSSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 標(biāo)準(zhǔn)包裝:100 系列:- 類型:簡單復(fù)位/加電復(fù)位 監(jiān)視電壓數(shù)目:1 輸出:- 復(fù)位:低有效 復(fù)位超時:最小為 100 ms 電壓 - 閥值:4.38V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:8-TSSOP 包裝:管件 |
| X41D255 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| X41K1 | 制造商:ABB Low Voltage Products and Systems 功能描述:CCT,1KVA,460V,SINGLE |
| X41K403 | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Harris Corporation 功能描述: |
| X41K417 | 制造商:Harris Corporation 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。