MC68HC705B16CFN

Manufacturer Part NumberMC68HC705B16CFN
DescriptionIC MCU 2.1MHZ 15K OTP 52-PLCC
ManufacturerFreescale Semiconductor
SeriesHC05
MC68HC705B16CFN datasheet
 


Specifications of MC68HC705B16CFN

Core ProcessorHC05Core Size8-Bit
Speed2.1MHzConnectivitySCI
PeripheralsPOR, WDTNumber Of I /o32
Program Memory Size15KB (15K x 8)Program Memory TypeOTP
Eeprom Size256 x 8Ram Size352 x 8
Voltage - Supply (vcc/vdd)4.5 V ~ 5.5 VData ConvertersA/D 8x8b
Oscillator TypeInternalOperating Temperature-40°C ~ 85°C
Package / Case52-PLCCLead Free Status / RoHS StatusContains lead / RoHS non-compliant
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
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
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
Page 251
252
Page 252
253
Page 253
254
Page 254
255
Page 255
256
Page 256
257
Page 257
258
Page 258
259
Page 259
260
Page 260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
Page 257/302

Download datasheet (4Mb)Embed
PrevNext
H.2
External clock
When using an external clock the OSC1 and OSC2 pins should be driven in antiphase (see
Figure
D-2). The t
or t
OXOV
ILCH
external clock input. The equivalent specification of the external clock source should be used in
lieu of t
or t
.
OXOV
ILCH
H.3
RESET pin
When the oscillator is running in a stable condition, the MCU is reset when a logic zero is applied
to the RESET input for a minimum period of 3.0 machine cycles (t
05B4, 705B5, 05B8, 05B16, 705B16 and the 05B32, which require 1.5 t
see
Section
9.1.3.
H.4
EPROM
The MC68HC705B32 memory map is given in
of EPROM. 14 bytes are used for the reset and interrupt vectors from address $7FF2 to $7FFF.
The main EPROM block of 31232 bytes is located from $0400 to $7DFF. One byte of EPROM is
used as an options register and is located at address $7FDE.
The EPROM array is supplied by the VPP6 pin in both read and program modes. Typically the
user’s software will be loaded into a programming board where V
bootstrap loader routines. It will then be placed in an application where no programming occurs.
In this case the VPP6 pin should be hardwired to V
Warning: A minimum V
voltage must be applied to the VPP6 pin at all times, including
DD
power-on. Failure to do so could result in permanent damage to the device. Unless
otherwise stated, EPROM programming is guaranteed at ambient (25°C) temperature
only.
MC68HC05B6
Rev. 4.1
specifications (see
Section
H.9) do not apply when using an
CYC
Figure
H-2. The device has a total of 31246 bytes
.
DD
MC68HC705B32
). This differs from the 05B6,
. For more information
CYC
is controlled by one of the
PP6
Freescale
H-7
14