X24C16S8M-3 Datasheet PDF - Xicor
| Part Number | X24C16S8M-3 | |
| Description | Serial E2PROM | |
| Manufacturers | Xicor | |
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XPr2e4liCm1in6ary Information
16K
X24C16
Serial E2PROM
2048 x 8 Bit
FEATURES
• 2.7V to 5.5V Power Supply
• Low Power CMOS
—Active Read Current Less Than 1 mA
—Active Write Current Less Than 3 mA
—Standby Current Less Than 50 µA
• Internally Organized 2048 x 8
• 2 Wire Serial Interface
—Bidirectional Data Transfer Protocol
• Sixteen Byte Page Write Mode
—Minimizes Total Write Time Per Byte
• Self Timed Write Cycle
—Typical Write Cycle Time of 5 ms
• High Reliability
—Endurance: 100,000 Cycles
—Data Retention: 100 Years
• 8 Pin Mini-DIP, 8 Pin SOIC and 14 Pin SOIC
Packages
DESCRIPTION
The X24C16 is a CMOS 16,384 bit serial E2PROM,
internally organized 2048 X 8. The X24C16 features a
serial interface and software protocol allowing operation
on a simple two wire bus.
The X24C16 is fabricated with Xicor’s advanced CMOS
Textured Poly Floating Gate Technology.
The X24C16 utilizes Xicor’s proprietary Direct WriteTM
cell providing a minimum endurance of 100,000 cycles
and a minimum data retention of 100 years.
FUNCTIONAL DIAGRAM
(8) VCC
(4) VSS
(7) TEST
(5) SDA
START
STOP
LOGIC
START CYCLE
H.V. GENERATION
TIMING
& CONTROL
(6) SCL
(3) A2
(2) A1
(1) A0
SLAVE ADDRESS
REGISTER
+COMPARATOR
CONTROL
LOGIC
LOAD
INC
WORD
ADDRESS
COUNTER
R/W
DOUT
ACK
PIN
XDEC
E2PROM
128 X 128
YDEC
8
CK DATA REGISTER DOUT
3840 FHD F01
© Xicor, 1991 Patents Pending
3840-1.1 7/29/96 T1/C0/D0 SH
1 Characteristics subject to change without notice
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X24C16
DEVICE ADDRESSING
Following a start condition the master must output the
address of the slave it is accessing. The most significant
four bits of the slave address are the device type identifier
(see Figure 4). For the X24C16 this is fixed as 1010[B].
Figure 4. Slave Address
DEVICE TYPE
IDENTIFIER
HIGH
ORDER
WORD
ADDRESS
1 0 1 0 A2 A1 A0 R/W
3840 FHD F09
The next three bits of the slave address field are the bank
select bits. They are used by the host to toggle between
the eight 256 x 8 banks of memory. These are, in effect,
the most significant bits for the word address.
The next three bits of the slave address are an extension
of the array’s address and are concatenated with the
Figure 5. Byte Write
eight bits of address in the word address field, providing
direct access to the whole 2048 x 8 array.
Following the start condition, the X24C16 monitors the
SDA bus comparing the slave address being transmit-
ted with its slave address (device type). Upon a correct
compare the X24C16 outputs an acknowledge on the
SDA line. Depending on the state of the R/W bit, the
X24C16 will execute a read or write operation.
WRITE OPERATIONS
Byte Write
For a write operation, the X24C16 requires a second
address field. This address field is the word address,
comprised of eight bits, providing access to any one of the
2048 words in the array. Upon receipt of the word address
the X24C16 responds with an acknowledge, and awaits
the next eight bits of data, again responding with an
acknowledge. The master then terminates the transfer by
generating a stop condition, at which time the X24C16
begins the internal write cycle to the nonvolatile memory.
While the internal write cycle is in progress the X24C16
inputs are disabled, and the device will not respond to any
requests from the master. Refer to Figure 5 for the
address, acknowledge and data transfer sequence.
S
T
BUS ACTIVITY: A
MASTER
R
T
SLAVE
ADDRESS
WORD
ADDRESS
SDA LINE
S
BUS ACTIVITY:
X24C16
AA
CC
KK
DATA
S
T
O
P
P
A
C
K
3840 FHD F10
5
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for X24C16S8M-3 electronic component. |
| Information | Total 15 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ X24C16S8M-3.PDF Datasheet ] | |
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