ST10F168SQ6 STMicroelectronics, ST10F168SQ6 Datasheet - Page 11

• Manufacturer Part Number: ST10F168SQ6
• Description: MCU 256KB FLASH 12K RAM 144-TQFP
• Manufacturer: STMicroelectronics
• Series: ST10r

Specifications of ST10F168SQ6

• Core Processor: ST10
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: CAN, EBI/EMI, SSC, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 111
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 144-MQFP, 144-PQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

4 - MEMORY ORGANIZATION
The memory space of the ST10F168 is configured
in a Von Neumann architecture. Code memory,
data memory, registers and I/O ports are orga-
nized within the same linear address space of
16M Byte. The entire memory space can be
accessed bytewise or wordwise. Particular por-
tions of the on-chip memory have additionally
been made directly bit addressable.
FLASH: 256K Byte of on-chip Flash memory. See
IRAM: 2K Byte of on-chip internal
(dual-port) is provided as a storage for data, sys-
tem stack, general purpose register banks and
code. A register bank is 16 wordwide (R0 to R15)
and / or bytewide (RL0, RH0,
eral purpose registers.
XRAM: 6K Byte of on-chip extension RAM (single
port XRAM) is provided as a storage for data, user
stack and code. The XRAM is connected to the
internal XBUS and is accessed like an external
memory in 16-bit demultiplexed bus-mode without
wait state or read / write delay (80ns access at
25MHz CPU clock). Byte and Word access are
allowed.
The XRAM address range is 00’D000h -
00’E7FFh if the XRAM is enabled (XPEN bit 2 of
SYSCON register). As the XRAM appears like
external memory, it cannot be used for the
ST10F168’s system stack or register banks. The
XRAM is not provided for single bit storage and
Flash Memory on page 13
, RL7, RH7) gen-
RAM
therefore is not bit addressable. If bit XPEN is
cleared, then any access in the address range
00’D000h - 00’E7FFh will be directed to external
memory interface, using the BUSCONx register
corresponding to address matching ADDRSELx
register.
SFR/ESFR: 1024 Byte (2 x 512 Byte) of address
space is reserved for the Special Function Regis-
ter areas. SFRs are wordwide registers which are
used for controlling and monitoring functions of
the different on-chip units.
CAN: Address range 00’EF00h - 00’EFFFh is
reserved for the CAN Module access. The CAN is
enabled by setting XPEN bit 2 of the SYSCON
register. Accesses to the CAN Module use demul-
tiplexed addresses and a 16-bit data bus (Byte
accesses are possible). Two wait states give an
access time of 160ns at 25MHz CPU clock. No
tristate wait state is used.
Note: If the CAN module is used, Port 4 can not
To meet the needs of designs where more mem-
ory is required than is provided on chip, up to 16M
Byte of external RAM and / or ROM can be con-
nected to the microcontroller.
be programmed to output all 8 segment
address lines. Therefore, only 4 segment
address lines can be used, reducing the
external memory space to 5M Byte (1M
Byte per CS line)
ST10F168
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