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
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RESET
100kΩ
1kΩ
1N914
0.01µF
Boot
red LED — programming failed
green LED — programming OK
Erase check
green LED — EPROM erased
red LED — EPROM not erased
+5V
1
27
28
VPP PGM
VCC
26
A13
10
A0
9
A1
8
A2
7
A3
6
A4
20
5
CE
A5
4
A6
3
27C128
A7
11
D0
12
D1
13
D2
25
15
A8
D3
24
16
A9
D4
21
17
A10
D5
23
18
A11
D6
2
19
A12
D7
GND
OE
14
22
Note:
This circuit is recommended for programming only at 25°C and not for use in the
end application, or at temperatures other than 25°C. If used in the end application,
VPP6 should be tied to VDD to avoid damaging the device.
Figure E-7 EPROM Parallel bootstrap schematic diagram
MC68HC05B6
Rev. 4.1
RUN
1N914
TCAP1
VRH
VDD
1.0µF
+
IRQ
OSC1
RESET
OSC2
NC
RDI
red LED
TCMP1
VRL
470Ω
VPP1
TCAP2
PLMA
PD7
470Ω
PLMB
PD6
PD5
green LED
PD3
PD2
PD1
PD0
MC68HC705B16
MCU
PD4
SCLK
TDO
TCMP2
VPP6
PB0
PB1
PB2
PC7
PB3
4k7Ω
PB4
PB5
PB6
PB7
100 kΩ
PA0
PA1
PC5
PA2
PC6
PA3
PA4
PC4
PA5
PC3
PA6
PC2
PA7
PC1
PC0
VSS
MC68HC705B16
P1
1
GND
2
+5V
3
+
100µF
V
PP
47µF
+
4.0 MHz
22pF
22pF
Erase check & boot
EPROM erase
check
RAM
EPROM
1 kΩ
10k Ω
12 kΩ
4k7Ω
+
BC239C
1nF
+5V
HDSK out
Short circuit if
handshake not used
HDSK in
A12
A11
A10
A9
A8
Freescale
E-15
14