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PDF X86C64SM Data sheet ( Hoja de datos )

Número de pieza X86C64SM
Descripción E2 Micro-Peripheral
Fabricantes Xicor 
Logotipo Xicor Logotipo



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No Preview Available ! X86C64SM Hoja de datos, Descripción, Manual

Preliminary Information
XZ8®6CM6ic4rocontroller Family Compatible
64K X86C64
E2 Micro-Peripheral
8192 x 8 Bit
FEATURES
CONCURRENT READ WRITE
—Dual Plane Architecture
Isolates Read/Write Functions
Between Planes
Allows Continuous Execution of Code
From One Plane While Writing in the Other
Plane
Multiplexed Address/Data Bus
—Direct Interface to Popular 8-bit
Microcontrollers, e.g. Zilog Z8 Family
High Performance CMOS
—Fast Access Time, 120 ns
—Low Power
60 mA Maximum Active
200 µA Maximum Standby
Software Data Protection
Block Protect Register
—Individually Set Write Lock Out in 1K Blocks
Toggle Bit
—Early End of Write Detection
Page Mode Write
—Allows up to 32 Bytes to be Written in
One Write Cycle
High Reliability
—Endurance: 10,000 Write Cycle
—Data Retention: 100 Years
DESCRIPTION
The X86C64 is an 8K x 8 E2PROM fabricated with
advanced CMOS Textured Poly Floating Gate Technol-
ogy. The X86C64 features a Multiplexed Address and
Data bus allowing direct interface to a variety of popular
single-chip microcontrollers operating in expanded mul-
tiplexed mode without the need for additional interface
circuitry.
The X86C64 is internally configured as two indepen-
dent 4K x 8 memory arrays. This feature provides the
ability to perform nonvolatile memory updates in one
array and continue operation out of code stored in the
other array; effectively eliminating the need for an aux-
iliary memory device for code storage.
To write to the X86C64, a three byte command
sequence must precede the byte(s) being written. The
X86C64 also provides a second generation software
data protection scheme called Block Protect. Block
Protect can provide write lockout of the entire device or
selected 1K blocks. There are eight, 1K x 8 blocks that
can be write protected individually in any combination
required by the user. Block Protect, in addition to Write
Control input, allows the different segments of the
memory to have varying degrees of alterability in nor-
mal system operation.
FUNCTIONAL DIAGRAM
CE
R/W
DS
SEL
A8–A11
AS
CONTROL
LOGIC
LX
AD
TE
CC
HO
ED
SE
WC
A12
SOFTWARE
DATA
PROTECT
A12
1K BYTES A12 1K BYTES
M
1K BYTES
1K BYTES
U
1K BYTES X 1K BYTES
1K BYTES
1K BYTES
Y DECODE
Z8® is a registered trademark of Zilog Corporation
CONCURRENT READ WRITEis a trademark of Xicor, Inc.
© Xicor, 1991 Patents Pending
3819-2.1 7/29/96 T0/C1/D1 SH
I/O & ADDRESS LATCHES AND BUFFERS
A/D0–A/D7
3819 FHD F02
1 Characteristics subject to change without notice

1 page




X86C64SM pdf
X86C64
Toggle Bit Polling
Because the X86C64 typical write timing is less than the
specified 5 ms, Toggle Bit Polling has been provided to
determine the early end of write. During the internal
programming cycle I/O6 will toggle from one to zero and
zero to one on subsequent attempts to read the device.
Toggle Bit Polling DS Control
When the internal cycle is complete the toggling will
cease and the device will be accessible for additional
read or write operations. Due to the dual plane architec-
ture, reads for polling must occur in the plane that was
written; that is, the state of A12 during write must match
the state of A12 during polling.
OPERATION
CE
LAST BYTE
WRITTEN
I/O6=X
I/O6=X
I/O6=X
I/O6=X
X68C64 READY FOR
NEXT OPERATION
AS
A/D0–A/D7
AIN DIN
AIN DOUT
AIN DOUT
AIN DOUT
AIN DOUT
AIN
A8–A12
A12=n
A12=n
A12=n
A12=n
A12=n
ADDR
DS
R/W
3819 FHD F08
5

5 Page





X86C64SM arduino
X86C64
PACKAGING INFORMATION
24-LEAD PLASTIC SMALL OUTLINE GULL WING PACKAGE TYPE S
PIN 1 INDEX
PIN 1
0.290 (7.37) 0.393 (10.00)
0.299 (7.60) 0.420 (10.65)
(4X) 7°
0.014 (0.35)
0.020 (0.50)
0.598 (15.20)
0.610 (15.49)
0.050 (1.27)
0.092 (2.35)
0.105 (2.65)
0.003 (0.10)
0.012 (0.30)
0° – 8°
0.010 (0.25)
0.020 (0.50) X 45°
0.050" TYPICAL
0.015 (0.40)
0.050 (1.27)
0.009 (0.22)
0.013 (0.33) 0.420"
0.050"
TYPICAL
FOOTPRINT
0.030" TYPICAL
24 PLACES
NOTE: ALL DIMENSIONS IN INCHES (IN PARENTHESES IN MILLIMETERS)
3926 FHD F24
11

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