MC9S08EL16CTJ Freescale Semiconductor, MC9S08EL16CTJ Datasheet - Page 312

• Manufacturer Part Number: MC9S08EL16CTJ
• Description: MCU 16KB FLASH SLIC 20TSSOP
• Manufacturer: Freescale Semiconductor
• Series: HCS08r

Specifications of MC9S08EL16CTJ

• Core Processor: HCS08
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, LIN, SCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 16
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-TSSOP
• Processor Series: S08EL
• Core: HCS08
• Data Bus Width: 8 bit
• Data Ram Size: 1 KB
• Interface Type: SCI, SPI, I2C, SLIC
• Maximum Clock Frequency: 200 KHz
• Number Of Programmable I/os: 16
• Number Of Timers: 2
• Operating Supply Voltage: 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWS08
• Development Tools By Supplier: DEMO9S08EL32AUTO, DEMO9S08EL32
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 12 Channel
• For Use With: DEMO9S08EL32 - BOARD DEMO FOR 9S08 EL MCUDEMO9S08EL32AUTO - DEMO BOARD EL32 AUTO
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Development Support
Figure 17-4
shows the host receiving a logic 1 from the target HCS08 MCU. Because the host is
asynchronous to the target MCU, there is a 0-to-1 cycle delay from the host-generated falling edge on
BKGD to the perceived start of the bit time in the target MCU. The host holds the BKGD pin low long
enough for the target to recognize it (at least two target BDC cycles). The host must release the low drive
before the target MCU drives a brief active-high speedup pulse seven cycles after the perceived start of the
bit time. The host should sample the bit level about 10 cycles after it started the bit time.
BDC CLOCK
(TARGET MCU)
HOST DRIVE
HIGH-IMPEDANCE
TO BKGD PIN
TARGET MCU
SPEEDUP PULSE
HIGH-IMPEDANCE
HIGH-IMPEDANCE
PERCEIVED START
OF BIT TIME
R-C RISE
BKGD PIN
10 CYCLES
EARLIEST START
OF NEXT BIT
10 CYCLES
HOST SAMPLES BKGD PIN
Figure 17-4. BDC Target-to-Host Serial Bit Timing (Logic 1)
MC9S08EL32 Series and MC9S08SL16 Series Data Sheet, Rev. 3
314
Freescale Semiconductor