ACE1101BEMT8X Fairchild Semiconductor, ACE1101BEMT8X Datasheet - Page 12
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ACE1101BEMT8X
Manufacturer Part Number
ACE1101BEMT8X
Description
IC MCU 1KBIT EEPROM 8TSSOP
Manufacturer
Fairchild Semiconductor
Series
ACEX® 11xxr
Datasheet
1.ACE1101BEMT8.pdf
(35 pages)
Specifications of ACE1101BEMT8X
Core Processor
ACE1001
Core Size
8-Bit
Speed
4MHz
Peripherals
Brown-out Detect/Reset, LVD, POR, PWM, WDT
Number Of I /o
6
Program Memory Size
1KB (1K x 8)
Program Memory Type
EEPROM
Eeprom Size
64 x 8
Ram Size
64 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
8-TSSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Data Converters
-
Connectivity
-
ACE1101 Product Family Rev. B.2
The ACEx microcontroller core is specifically designed for low
cost applications involving bit manipulation, shifting block encryp-
tion. It is based on a modified Harvard architecture meaning
peripheral, I/O, and RAM locations are addressed separately from
instruction data.
The core differs from the traditional Harvard architecture by
aligning the data and instruction memory sequentially. This allows
the X-pointer (11-bits) to point to any memory location in either
A
X
PC
SP
SR
10
9
R
7
0
0
G
3
Z
C
H
N
0
0
0
0
8-bit accumulator register
11-bit X pointer register
10-bit program counter
4-bit stack pointer
8-bit status register
NEGATIVE flag
HALF CARRY flag (from bit 3)
CARRY flag (from MSB)
ZERO flag
GLOBAL Interrupt Mask
READY flag (from EEPROM)
segment of the memory map. This modification improves the
overall code efficiency of the ACEx microcontroller and takes
advantage of the flexibility found on Von Neumann style ma-
chines.
The ACEx microcontroller has five general-purpose registers.
These registers are the Accumulator (A), X-Pointer (X), Program
Counter (PC), Stack Pointer (SP), and Status Register (SR). The
X, SP, and SR registers are all memory-mapped.
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