MC68HC705B16CFN

Manufacturer Part NumberMC68HC705B16CFN
DescriptionIC MCU 2.1MHZ 15K OTP 52-PLCC
ManufacturerFreescale Semiconductor
SeriesHC05
MC68HC705B16CFN datasheet
 


Specifications of MC68HC705B16CFN

Core ProcessorHC05Core Size8-Bit
Speed2.1MHzConnectivitySCI
PeripheralsPOR, WDTNumber Of I /o32
Program Memory Size15KB (15K x 8)Program Memory TypeOTP
Eeprom Size256 x 8Ram Size352 x 8
Voltage - Supply (vcc/vdd)4.5 V ~ 5.5 VData ConvertersA/D 8x8b
Oscillator TypeInternalOperating Temperature-40°C ~ 85°C
Package / Case52-PLCCLead Free Status / RoHS StatusContains lead / RoHS non-compliant
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5.6
Timer during STOP mode
When the MCU enters STOP mode, the timer counter stops counting and remains at that
particular count value until STOP mode is exited by an interrupt. If STOP mode is exited by
power-on or external reset, the counter is forced to $FFFC but if it is exited by external interrupt
(IRQ) then the counter resumes from its stopped value.
Another feature of the programmable timer is that if at least one valid input capture edge occurs
at one of the TCAP pins while in STOP mode, the corresponding input capture detect circuitry is
armed. This action does not wake the MCU or set any timer flags, but when the MCU does
wake-up there will be an active input capture flag (and data) from that first valid edge which
occurred during STOP mode.
5
If STOP mode is exited by an external reset then no such input capture flag or data action takes
place even if there was a valid input capture edge (at one of the TCAP pins) during STOP mode.
5.7
Timer during WAIT mode
The timer system is not affected by WAIT mode and continues normal operation. Any valid timer
interrupt will wake-up the system.
5.8
Timer state diagrams
The relationships between the internal clock signals, the counter contents and the status of the
flag bits are shown in the following figures. It should be noted that the signals labelled ‘internal’
(processor clock, timer clocks and reset) are not available to the user.
Freescale
5-12
PROGRAMMABLE TIMER
MC68HC05B6
Rev. 4.1