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參數(shù)資料
| 型號： | CAT33C804AJ-TE13 |
| 英文描述： | 4K-Bit Secure Access Serial E2PROM |
| 中文描述： | 4K的位安全接入串行E2PROM |
| 文件頁數(shù)： | 5/14頁 |
| 文件大?。?/td> | 89K |
| 代理商： | CAT33C804AJ-TE13 |
Preliminary
CAT33C804A
5
Doc. No. 25044-00 2/98
READ SEQUENTIAL
To allow for convenient reading of blocks of contiguous
data, the device has a READ SEQUENTIAL instruction
which accepts a starting address of the block and
continuously outputs data of subsequent addresses
until the end of memory, or until Chip Select goes LOW.
The CAT33C804A communicates with external devices
via an asynchronous serial communication protocol.
The data transmission may be a continuous stream of
data or it can be packed by pulsing Chip Select LOW in
between each packet of information. (Except for the
SEQUENTIAL READ instruction where Chip Select
must be held high).
PIN DESCRIPTIONS
CS
Chip Select is a TTL compatible input which, when set
HIGH, allows normal operation of the device. Any time
Chip Select is set LOW, it resets the device, terminating
all I/O communication, and puts the output in a high
impedance state. CS is used to reset the device if an
error condition exists or to put the device in a power-
down mode to minimize power consumption. It may also
be used to frame data transmission in applications
where the clock and data input have to be ignored from
time to time. Although CS resets the device, it does not
change the program/erase or the access-enable status,
nor does it terminate a programming cycle once it has
started. The program/erase and access-enable opera-
tions, once enabled, will remain enabled until specific
disabling instructions are sent or until power is removed.
Note:
(1) x = DON’T CARE; a = ADDRESS BIT.
Figure 2. Secure Mode
5074 FHD F04
ACCESS REGISTER:
ACCESS CODE LENGTH:
MEMORY POINTER:
POINTER
REGISTER
ADDRESS
IN MEMORY
READ-ONLY
ACCESS
PASSWORD-ONLY
ACCESS
255 (x16)
511 (x8)
0
ACCESS CODE (1–8 BYTES)
1 TO 8
a…a
a…a
Figure 3. Unprotected Mode
(1)
ACCESS REGISTER:
ACCESS CODE LENGTH:
MEMORY POINTER:
POINTER
REGISTER
ADDRESS
IN MEMORY
READ/WRITE/ERASE
ACCESS
READ-ONLY
ACCESS
255 (x16)
511 (x8)
0
x…x
0
a…a
a…a
5074 FHD F05
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| CAT33C804AJA-TE13 | 4K-Bit Secure Access Serial E2PROM |
| CAT33C804AJI-TE13 | 4K-Bit Secure Access Serial E2PROM |
| CAT33C804AP-TE13 | 4K-Bit Secure Access Serial E2PROM |
| CAT33C804APA-TE13 | 4K-Bit Secure Access Serial E2PROM |
| CAT33C804API-TE13 | 4K-Bit Secure Access Serial E2PROM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CAT33C804AJ-TE7 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Serial EEPROM |
| CAT33C804AKI | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Serial EEPROM |
| CAT33C804APATE13 | 制造商:CATALYST 制造商全稱:Catalyst Semiconductor 功能描述:4K-Bit Secure Access Serial E2PROM |
| CAT33C804APA-TE13 | 制造商:CATALYST 制造商全稱:Catalyst Semiconductor 功能描述:4K-Bit Secure Access Serial E2PROM |
| CAT33C804APITE13 | 制造商:CATALYST 制造商全稱:Catalyst Semiconductor 功能描述:4K-Bit Secure Access Serial E2PROM |
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