ST92150CV1Q-Auto STMicroelectronics, ST92150CV1Q-Auto Datasheet - Page 11

• Manufacturer Part Number: ST92150CV1Q-Auto
• Description: 8-bit MCU for automotive
• Manufacturer: STMicroelectronics

Specifications of ST92150CV1Q-Auto

• Internal Memory: Single Voltage FLASH up to 256 Kbytes, RAM up to 8Kbytes, 1K byte E3 TM (Emulated EEPROM)
• Minimum Instruction Time: 83 ns (24 MHz int. clock)

1.2 PIN DESCRIPTION
AS. Address Strobe (output, active low, 3-state).
Address Strobe is pulsed low once at the begin-
ning of each memory cycle. The rising edge of AS
indicates that address, Read/Write (RW), and
Data signals are valid for memory transfers.
DS. Data Strobe (output, active low, 3-state). Data
Strobe provides the timing for data movement to or
from Port 0 for each memory transfer. During a
write cycle, data out is valid at the leading edge of
DS. During a read cycle, Data In must be valid pri-
or to the trailing edge of DS. When the ST9 ac-
cesses on-chip memory, DS is held high during
the whole memory cycle.
RESET. Reset (input, active low). The ST9 is ini-
tialised by the Reset signal. With the deactivation
of RESET, program execution begins from the
Program memory location pointed to by the vector
contained in program memory locations 00h and
01h.
RW. Read/Write (output, 3-state). Read/Write de-
termines the direction of data transfer for external
memory transactions. RW is low when writing to
external memory, and high for all other transac-
tions.
OSCIN, OSCOUT. Oscillator (input and output).
These pins connect a parallel-resonant crystal, or
an external source to the on-chip clock oscillator
and buffer. OSCIN is the input of the oscillator in-
verter; OSCOUT is the output of the oscillator in-
verter.
HW0SW1. When connected to V
pull-up resistor, the software watchdog option is
selected. When connected to V
pull-down resistor, the hardware watchdog option
is selected.
VPWO. This pin is the output line of the J1850 pe-
ripheral (JBLPD). It is available only on some de-
vices.
RX1/WKUP6. Receive Data input of CAN1 and
Wake-up line 6. Available only on some devices.
When the CAN1 peripheral is disabled, a pull-up
resistor is connected internally to this pin.
TX1. Transmit Data output of CAN1. Available on
some devices.
P0[7:0], P1[7:0] or P9[7:2] (Input/Output, TTL or
CMOS compatible). 11 lines (64-pin devices) or 22
SS
DD
through a 1K
through a 1K
ST92124xxx-Auto/150xxxxx-Auto/250xxxx-Auto
lines (100-pin devices) providing the external
memory interface for addressing 2K or 4M bytes of
external memory.
P0[7:0], P1[2:0], P2[7:0], P3[7:4], P4.[7:4],
P5[7:0], P6[5:2,0], P7[7:0] I/O Port Lines (Input/
Output, TTL or CMOS compatible). I/O lines
grouped into I/O ports of 8 bits, bit programmable
under software control as general purpose I/O or
as alternate functions.
P1[7:3], P3[3:1], P4[3:0], P6.1, P8[7:0], P9[7:0]
Additional I/O Port Lines available on 100-pin ver-
sions only.
P3.0, P6[7:6] Additional I/O Port Lines available
on ST92250-Auto version only.
AV
verter (common for ADC 0 and ADC 1).
AVDD can be switched off when the ADC is not in
use.
AV
verter (common for ADC 0 and ADC 1).
V
available on 100-pin versions, two on 64-pin ver-
sions. The pins are internally connected.
V
ble on 100-pin versions, two on 64-pin versions.
The pins are internally connected.
V
poses. This pin must be kept to 0 in user mode.
V
age regulator. The user must connect external sta-
bilization capacitors to these pins. Refer to
16.
1.2.1 I/O Port Alternate Functions
Each pin of the I/O ports of the ST92124-Auto/
150-Auto/250-Auto may assume software pro-
grammable Alternate Functions as shown in
tion
1.2.2 Termination of Unused Pins
For unused pins, input mode is not recommended.
These pins must be kept at a fixed voltage using
the output push pull mode of the I/O or an external
pull-up or pull-down resistor.
DD
SS
TEST
REG
DD
SS
. Digital Circuit Ground. Four pins are availa-
. Main Power Supply Voltage. Four pins are
1.4.
. Stabilization capacitors for the internal volt-
. Analog V
. Analog V
Power Supply Voltage for Flash test pur-
SS
DD
of the Analog to Digital Con-
of the Analog to Digital Con-
Figure
11/430
Sec-
9