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Numéro de référence | T48C893 | ||
Description | The multiple times programmable (MTP) version | ||
Fabricant | ATMEL Corporation | ||
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T48C893
Flash Version for M44C090/890 and M44C092/892
The T48C893 is the multiple times programmable (MTP) version for the MARC4 ROM types M44C090/890,
M44C092/892. The MTP is designed with EEPROM cells so it can be programmed several times. To offer full compati-
bility with each ROM version, the I/O configuration is stored into a separate internal EEPROM block during
programming.The configuration is download to the I/Os with every power-on reset..
Features / Benefits
D 4-Kbyte EEPROM program memory
D Wide supply voltage range (1.8 to 6.5 V)
D EEPROM programmable options
D Read protection for the EEPROM program memory
D 16 bidirectional I/Os
D Up to 7 external / internal interrupt sources
D 8 hardware and software interrupt priorities
D Very low sleep current (< 1 µA)
D 2 512 bit EEPROM data memory
D 256 4 bit RAM data memory
D Synchronous serial interface (2-wire, I2C, 3-wire)
D Multifunction timer/counter with prescaler/interval
timer
D Programmable system-clock with prescaler and five
different clock sources
D Watchdog, POR and brown-out function
D Voltage monitoring incl. Lo_BAT detect
D Multi-chip link for U3280M
VSS VDD
OSC1 OSC2
BP10
BP13
BP20/NTE
BP21
BP22
BP23
Brown-out protect.
RESET
Voltage monitor
External input
VMI
Port 1
RC Crystal External
oscillators oscillators clock input
Clock management
EEPROM RAM
4 K x 8 bit 256 x 4 bit
MARC4
4-bit CPU core
I/O bus
UTCM
Timer 1
interval- and
watchdog timer
Timer 2
8/12-bit timer
with modulator
SSI
Serial interface
T2I
T2O
SD
SC
Timer 3
8-bit
timer / counter
with modulator
and demodulator
T3O
T3I
Data direction +
alternate function
Port 4
Data direction +
interrupt control
Port 5
Data dir. +
alt. function
Port 6
EEPROM
2 32
16 bit
BP40 BP42
BP50 BP52
INT3 T2O BP43 INT6 INT1
SC BP41 INT3
BP51 BP53
VMI SD
INT6 INT1
T2I
BP60
T3O
BP63
T3I
Figure 1. Block diagram T48C893
Rev. A4, 22-Jan-02
1 (82)
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Pages | Pages 30 | ||
Télécharger | [ T48C893 ] |
No | Description détaillée | Fabricant |
T48C893 | The multiple times programmable (MTP) version | ATMEL Corporation |
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