ST92T163R4T1 STMicroelectronics, ST92T163R4T1 Datasheet - Page 218
ST92T163R4T1
Manufacturer Part Number
ST92T163R4T1
Description
Microcontrollers (MCU) OTP EPROM 20K USB/I2
Manufacturer
STMicroelectronics
Datasheet
1.ST92T163R4T1.pdf
(224 pages)
Specifications of ST92T163R4T1
Data Bus Width
8 bit, 16 bit
Program Memory Type
EPROM
Program Memory Size
20 KB
Data Ram Size
2 KB
Interface Type
I2C, SCI, USB
Maximum Clock Frequency
24 MHz
Number Of Programmable I/os
64
Number Of Timers
2
Operating Supply Voltage
4 V to 5.5 V
Maximum Operating Temperature
+ 70 C
Mounting Style
SMD/SMT
Package / Case
TQFP-64
Minimum Operating Temperature
0 C
On-chip Adc
8 bit
Lead Free Status / Rohs Status
No
Available stocks
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Price
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Part Number:
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Manufacturer:
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Quantity:
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Part Number:
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ST92163 - GENERAL INFORMATION
10 GENERAL INFORMATION
10.1 EPROM/OTP PROGRAMMING
The 20 Kbytes of EPROM/OTP of the ST92E163/
ST92T163 may be programmed using the
EPROM programming boards available from
STMicroelectronics.
EPROM Erasing
The EPROM of the windowed package of the
ST92E163 can be erased by exposure to Ultra-Vi-
olet light.
The erasure characteristic of the ST92E163 is
such that erasure begins when the memory is ex-
posed to light with wave lengths shorter than ap-
proximately 4000Å. It should be noted that sunlight
and some types of fluorescent lamps have wave-
lengths in the range 3000-4000Å. It is recom-
218/224
mended to cover the window of the ST92E163
packages by an opaque label to prevent uninten-
tional erasure problems when testing the applica-
tion in such an environment.
The recommended erasure procedure of the
EPROM is the exposure to short wave ultraviolet
light which have a wave-length 2537Å. The inte-
grated dose (i.e. U.V. intensity x exposure time) for
erasure should be a minimum of 15W-sec/cm2.
The erasure time with this dosage is approximate-
ly 30 minutes using an ultraviolet lamp with a
12000 mW/cm2 power rating. The device should
be placed within 2.5 cm (1 inch) of the lamp tubes
during erasure.
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