MAC7131MVF40 Freescale Semiconductor, MAC7131MVF40 Datasheet - Page 15

• Manufacturer Part Number: MAC7131MVF40
• Description: IC MCU 32BIT FLASH 208-MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: MAC7xxxr

Specifications of MAC7131MVF40

• Core Processor: ARM7
• Core Size: 32-Bit
• Speed: 40MHz
• Connectivity: CAN, EBI/EMI, I²C, SCI, SPI
• Peripherals: DMA, POR
• Number Of I /o: 128
• Program Memory Size: 544KB (544K x 8)
• Program Memory Type: FLASH
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 2.35 V ~ 5.5 V
• Data Converters: A/D 32x8/10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 208-MAPBGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

3.8
This section describes the electrical characteristics for the oscillator, phase-locked loop, clock monitor and
reset generator.
3.8.1
The MAC7100 Family features an internal low power loop controlled Pierce oscillator and a full swing
Pierce oscillator/external clock mode. The selection of loop controlled Pierce oscillator or full swing
Pierce oscillator/external clock depends on the level of the XCLKS signal at the rising edge of the RESET
signal. Before asserting the oscillator to the internal system clock distribution subsystem, the quality of the
oscillation is checked for each start from either power on, STOP or oscillator fail. t
maximum time before switching to the internal self clock mode after POR or STOP if a proper oscillation
is not detected. The quality check also determines the minimum oscillator start-up time t
also features a clock monitor. A Clock Monitor Failure is asserted if the frequency of the incoming clock
signal is below the Clock Monitor Assert Frequency f
Freescale Semiconductor
NOTES:
1. If CLKSEL[PLLSEL] is clear then the system clock (f
2. Depending on the crystal; a damping series resistor might be necessary
3. XCLKS asserted (low) during reset
4. f
5. Maximum value is for extreme cases using high Q, low frequency crystals
Num C
J1a C Crystal oscillator range (loop controlled Pierce)
J1b C Crystal oscillator range (full swing Pierce)
J10 D External square wave fall time
J11 D Input Capacitance (EXTAL, XTAL pins)
J2
J3
J4
J5
J6
J7
J8
J9
Table
board layout recommendations, including oscillator capacitor placement and values).
OSC
Clock and Reset Generator
C Oscillator start-up time (loop controlled Pierce)
D Clock Quality check time-out
D External square wave pulse width low
D External square wave pulse width high
D External square wave rise time
P Startup Current
P Clock Monitor Failure Assert Frequency
P External square wave input frequency
= 4 MHz, C = 22 pF (refer to the MAC7100 Microcontroller Family Reference Manual (MAC7100RM) for circuit
20, K3). Throughout this document, t
Oscillator Characteristics
MAC7100 Microcontroller Family Hardware Specifications, Rev. 1.2
Rating
Table 19. Oscillator Characteristics
SYS
3
is used to specify a unit of time equal to 1 ÷ f
2 3
Preliminary
SYS
) is equal to f
CMFA
Symbol
t
t
f
f
UPOSC
CQOUT
f
t
t
t
t
OSC
OSC
I
CMFA
EXTH
EXTR
f
EXTL
EXTF
OSC
C
EXT
IN
.
1
1
OSC
, otherwise it is equal to f
0.45
Min
100
4.0
0.5
0.5
9.5
9.5
50
—
—
—
—
Typ
100
3
—
—
—
—
—
—
—
—
—
7
4
SYS
Electrical Characteristics
CQOUT
.
UPOSC
VCO
Max
50
200
2.5
16
40
50
—
—
—
—
1
1
5
specifies the
(table
. The device
MHz
MHz
MHz
Unit
KHz
μA
ms
pF
ns
ns
ns
ns
s
15