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X24640V20-2.5 Datasheet

  • X24640V20-2.5

  • 400KHz 2-Wire Serial E 2 PROM with Block Lock

  • 87.76KB

  • 17頁

  • XICOR   XICOR

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64K
X24640
400KHz 2-Wire Serial E
2
PROM with Block Lock
TM
DESCRIPTION
8K x 8 Bit
FEATURES
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Save Critical Data with Programmable
Block Lock Protection
鈥擝lock Lock (0, 1/4, 1/2, or all of E
2
PROM Array)
鈥擲oftware Program Protection
鈥擯rogrammable Hardware Write Protect
In Circuit Programmable ROM Mode
400KHz 2-Wire Serial Interfac
鈥擲chmitt Trigger Input Noise Suppression
鈥擮utput Slope Control for Ground Bounce
Noise Elimination
Longer Battery Life With Lower Power
鈥擜ctive Read Current Less Than 1mA
鈥擜ctive Program Current Less Than 3mA
鈥擲tandby Current Less Than 1
碌
A
1.8V to 3.6V, 2.5V to 5.5V and 4.5V to 5.5V
Power Supply Versions
32 Word Page Write Mode
鈥擬inimizes Total Write Time Per Word
Internally Organized 8K x 8
Bidirectional Data Transfer Protocol
Self-Timed Write Cycle
鈥擳ypical Write Cycle Time of 5ms
High Reliability
鈥擡ndurance: 100,000 Cycles
鈥擠ata Retention: 100 Years
8-Lead SOIC
20-Lead TSSOP
8-Lead PDIP
The X24640 is a CMOS Serial E
2
PROM, internally
organized 8K x 8. The device features a serial inter-
face and software protocol allowing operation on a
simple two wire bus. The bus operates at 400 KHz all
the way down to 1.8V.
Three device select inputs (S
0
鈥揝
2
) allow up to eight
devices to share a common two wire bus.
A Write Protect Register at the highest address loca-
tion, FFFFh, provides three write protection features:
Software Write Protect, Block Lock Protect, and
Programmable Hardware Write Protect. The Software
Write Protect feature prevents any nonvolatile writes to
the device until the WEL bit in the Write Protect
Register is set. The Block Lock Protection feature
gives the user four array block protect options, set by
programming two bits in the Write Protect Register.
The Programmable Hardware Write Protect feature
allows the user to install the device with WP tied to
V
CC
, program and Block Lock the desired portions of
the memory array in circuit, and then enable the In
Circuit Programmable ROM Mode by programming the
WPEN bit in the Write Protect Register. After this, the
Block Locked portions of the array, including the Write
Protect Register itself, are permanently protected from
being erased.
FUNCTIONAL DIAGRAM
SERIAL E
2
PROM DATA
AND ADDRESS (SDA)
DATA REGISTER
Y DECODE LOGIC
COMMAND
DECODE
AND
CONTROL
LOGIC
BLOCK LOCK AND
WRITE PROTECT
CONTROL LOGIC
S2
S1
S0
DEVICE
SELECT
LOGIC
WRITE
PROTECT
REGISTER
4K x 8
SERIAL E
2
PROM
ARRAY
8K x 8
2K x 8
SCL
PAGE
DECODE
LOGIC
2K x 8
WP
WRITE VOLTAGE
CONTROL
7038 FM 01
漏
Xicor, 1995, 1996 Patents Pending
7038-1.2 4/25/97 T0/C2/D0 SH
1
Characteristics subject to change without notice

X24640V20-2.5相關(guān)型號PDF文件下載

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  • 英文版
    400KHz 2-Wire Serial E 2 PROM with Block Lock
    XICOR
  • 英文版
    400KHz 2-Wire Serial E 2 PROM with Block Lock
    XICOR [Xic...
  • 英文版
    400 KHz 2-Wire Serial E 2 PROM
    XICOR
  • 英文版
    400 KHz 2-Wire Serial E 2 PROM
    XICOR [Xic...
  • 英文版
    Advanced 2-Wire Serial E 2 PROM with Block Lock TM Protectio...
    XICOR
  • 英文版
    Advanced 2-Wire Serial E 2 PROM with Block Lock TM Protectio...
    XICOR [Xic...
  • 英文版
    400KHz 2-Wire Serial E 2 PROM with Block Lock
    XICOR
  • 英文版
    400KHz 2-Wire Serial E 2 PROM with Block Lock
    XICOR [Xic...
  • 英文版
    I2C Serial EEPROM
    ETC
  • 英文版
    Advanced 2-Wire Serial E2PROM with Block LockTM Protection
    ICMIC [IC ...
  • 英文版
    Advanced 2-Wire Serial E2PROM with Block LockTM Protection
    ICMIC [IC ...
  • 英文版
    Advanced 2-Wire Serial E2PROM with Block LockTM Protection
    ICMIC [IC ...
  • 英文版
    Advanced 2-Wire Serial E 2 PROM with Block Lock TM Protectio...
    XICOR
  • 英文版
    Advanced 2-Wire Serial E 2 PROM with Block Lock TM Protectio...
    XICOR [Xic...
  • 英文版
    Advanced 2-Wire Serial E 2 PROM with Block Lock TM Protectio...
    XICOR
  • 英文版
    Advanced 2-Wire Serial E 2 PROM with Block Lock TM Protectio...
    XICOR [Xic...
  • 英文版
    Advanced 2-Wire Serial E 2 PROM with Block Lock TM Protectio...
    XICOR
  • 英文版
    Advanced 2-Wire Serial E 2 PROM with Block Lock TM Protectio...
    XICOR [Xic...
  • 英文版
    400KHz 2-Wire Serial E 2 PROM with Block Lock
    XICOR
  • 英文版
    400KHz 2-Wire Serial E 2 PROM with Block Lock
    XICOR [Xic...

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