COP8AME9_14 Datasheet, PDF (3/102 Pages) Texas Instruments – COP8AME9 8-Bit CMOS Flash Microcontroller with 8k Memory, Dual Op Amps, Virtual EEPROM, Temperature Sensor, 10-Bit A/D and Brownout Reset

COP8AME9, COP8ANE9
www.ti.com
SNOS930F – MARCH 2001 – REVISED MARCH 2013
Table 2. Pinouts for 28-Pin Packages
Port
L0
L1
L2
L3
L4
L5
L6
L7
G0
G1
G2
G3
G4
G5
G6
G7
B2
B3
B4
B5
B6
B7
DV_CC
DGND
AV_CC
AGND
CKI
RESET
Type
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I
I
I/O
I/O
I/O
I/O
I/O
I/O
Alt. Fun
MIWU or Low Speed OSC In
MIWU or CKX or Low Speed OSC Out
MIWU or TDX
MIWU or RDX
MIWU or T2A
MIWU or T2B
MIWU or T3A
MIWU or T3B
INT
WDOUT ⁽¹⁾
T1B
T1A
SO
SK
SI
CKO
ADCH10
ADCH11 or AMP1 Output
ADCH12 or AMP1 − Input
ADCH13 or AMP1 + Input
ADCH14 or A/D MUX OUT
ADCH15 or A/D IN
I
I
In System Emulation Mode
Input
POUT
Output
Clock
V_CC
GND
RESET
(1) G1 operation as WDOUT is controlled by Option Register bit 2.
28-Pin DIP/SOIC
3
4
5
6
7
8
9
10
22
23
24
25
26
27
28
1
11
12
13
14
15
16
20
17
19
18
2
21
Architectural Overview
EMI REDUCTION
The COP8AME9 device incorporates circuitry that guards against electromagnetic interference - an increasing
problem in today's microcontroller board designs. TI's patented EMI reduction technology offers low EMI clock
circuitry, gradual turn-on output drivers (GTOs) and internal Icc smoothing filters, to help circumvent many of the
EMI issues influencing embedded control designs. TI has achieved 15 dB–20 dB reduction in EMI transmissions
when designs have incorporated its patented EMI reducing circuitry.
IN-SYSTEM PROGRAMMING AND VIRTUAL EEPROM
The device includes a program in a boot ROM that provides the capability, through the MICROWIRE/PLUS serial
interface, to erase, program and read the contents of the Flash memory.
Additional routines are included in the boot ROM, which can be called by the user program, to enable the user to
customize in-system software update capability if MICROWIRE/PLUS is not desired.
Additional functions will copy blocks of data between the RAM and the Flash Memory. These functions provide a
virtual EEPROM capability by allowing the user to emulate a variable amount of EEPROM by initializing
nonvolatile variables from the Flash Memory and occasionally restoring these variables to the Flash Memory.
Copyright © 2001–2013, Texas Instruments Incorporated
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