IC MCU 8BIT OTP/EPROM 28 PSOIC

ST62T65CM6

Manufacturer Part NumberST62T65CM6
DescriptionIC MCU 8BIT OTP/EPROM 28 PSOIC
ManufacturerSTMicroelectronics
SeriesST6
ST62T65CM6 datasheet
 


Specifications of ST62T65CM6

Core ProcessorST6Core Size8-Bit
Speed8MHzConnectivitySPI
PeripheralsLED, LVD, POR, WDTNumber Of I /o21
Program Memory Size3.8KB (3.8K x 8)Program Memory TypeOTP
Eeprom Size128 x 8Ram Size128 x 8
Voltage - Supply (vcc/vdd)3 V ~ 6 VData ConvertersA/D 13x8b
Oscillator TypeInternalOperating Temperature-40°C ~ 85°C
Package / Case28-SOIC (7.5mm Width)Controller Family/seriesST6
No. Of I/o's21Eeprom Memory Size128Byte
Ram Memory Size128ByteCpu Speed8MHz
No. Of Timers2Rohs CompliantYes
Processor SeriesST62T6xCoreST6
Data Bus Width8 bitData Ram Size128 B
Interface TypeSCIMaximum Clock Frequency8 MHz
Number Of Programmable I/os21Number Of Timers1
Operating Supply Voltage3 V to 6 VMaximum Operating Temperature+ 125 C
Mounting StyleSMD/SMTDevelopment Tools By SupplierST62GP-EMU2, ST62E2XC-EPB/110, ST62E6XC-EPB/US, STREALIZER-II
Minimum Operating Temperature- 40 COn-chip Adc8 bit
Lead Free Status / RoHS StatusLead free / RoHS CompliantOther names497-2103-5
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
Page 21
22
Page 22
23
Page 23
24
Page 24
25
Page 25
26
Page 26
27
Page 27
28
Page 28
29
Page 29
30
Page 30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
Page 27/84

Download datasheet (2Mb)Embed
PrevNext
DIGITAL WATCHDOG (Cont’d)
The Watchdog is associated with a Data space
register (Digital WatchDog Register, DWDR, loca-
tion 0D8h) which is described in greater detail in
Section 3.2.1 Digital Watchdog Register
This register is set to 0FEh on Reset: bit C is
cleared to “0”, which disables the Watchdog; the
timer downcounter bits, T0 to T5, and the SR bit
are all set to “1”, thus selecting the longest Watch-
dog timer period. This time period can be set to the
user’s requirements by setting the appropriate val-
ue for bits T0 to T5 in the DWDR register. The SR
bit must be set to “1”, since it is this bit which gen-
erates the Reset signal when it changes to “0”;
clearing this bit would generate an immediate Re-
set.
It should be noted that the order of the bits in the
DWDR register is inverted with respect to the as-
sociated bits in the down counter: bit 7 of the
DWDR register corresponds, in fact, to T0 and bit
2 to T5. The user should bear in mind the fact that
these bits are inverted and shifted with respect to
the physical counter bits when writing to this regis-
ter. The relationship between the DWDR register
bits and the physical implementation of the Watch-
dog timer downcounter is illustrated in
Only the 6 most significant bits may be used to de-
fine the time period, since it is bit 6 which triggers
the Reset when it changes to “0”. This offers the
user a choice of 64 timed periods ranging from
3,072 to 196,608 clock cycles (with an oscillator
frequency of 8MHz, this is equivalent to timer peri-
ods ranging from 384µs to 24.576ms).
Figure 17. Watchdog Counter Control
(DWDR).
D0
D1
D2
D3
D4
D5
D6
Figure
17.
D7
ST6255C ST6265C ST6265B
C
SR
RESET
T5
T4
T3
T2
T1
T0
8
2
OSC 12
VR02068A
27/84