T89C5115-TISUM Atmel, T89C5115-TISUM Datasheet - Page 33
![IC 8051 MCU FLASH 16K 28SOIC](/photos/6/82/68295/453-28-soic_sml.jpg)
T89C5115-TISUM
Manufacturer Part Number
T89C5115-TISUM
Description
IC 8051 MCU FLASH 16K 28SOIC
Manufacturer
Atmel
Series
89Cr
Datasheet
1.T89C5115-RATIM.pdf
(113 pages)
Specifications of T89C5115-TISUM
Core Processor
8051
Core Size
8-Bit
Speed
40MHz
Connectivity
UART/USART
Peripherals
POR, PWM, WDT
Number Of I /o
20
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Eeprom Size
2K x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
28-SOIC (7.5mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
89C5115-TISUM
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FM0 Memory Architecture
User Space
Extra Row (XRow)
Hardware Security Byte
Column Latches
Cross Flash Memory Access
Description
4128G–8051–02/08
The Flash memory is made up of 4 blocks (See Figure 13):
1. The memory array (user space) 16K Bytes
2. The Extra Row
3. The Hardware security bits
4. The column latch registers
This space is composed of a 16K Bytes Flash memory organized in 128 pages of 128
Bytes. It contains the user’s application code.
This row is a part of FM0 and has a size of 128 Bytes. The extra row may contain infor-
mation for boot loader usage.
The Hardware security Byte space is a part of FM0 and has a size of 1 byte.
The 4 MSB can be read/written by software, the 4 LSB can only be read by software and
written by hardware in parallel mode.
The column latches, also part of FM0, have a size of full page (128 Bytes).
The column latches are the entrance buffers of the three previous memory locations
(user array, XROW and Hardware security byte).
The FM0 memory can be programmed as describe on Table 20. Programming FM0
from FM0 is impossible.
The FM1 memory can be program only by parallel programming.
Table 20 show all software Flash access allowed.
Table 20. Cross Flash Memory Access
(user Flash)
(boot Flash)
FM0
FM1
Load column latch
Load column latch
Action
Read
Write
Read
Write
(user Flash)
FM0
ok
ok
ok
ok
ok
-
(boot Flash)
FM1
ok
-
-
-
-
-
33
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