Z8F042AHH020EC Zilog, Z8F042AHH020EC Datasheet - Page 249

• Manufacturer Part Number: Z8F042AHH020EC
• Description: IC ENCORE XP MCU FLASH 4K 20SSOP
• Manufacturer: Zilog
• Series: Encore!® XP®r

Specifications of Z8F042AHH020EC

• Core Processor: Z8
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: IrDA, UART/USART
• Peripherals: Brown-out Detect/Reset, LED, LVD, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 17
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 128 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 7x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 20-SSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 269-3368

PS022825-0908
(Output)
(Output)
TXD
(Input)
CTS
DE
UART Timing
Figure 37
CTS is used for flow control. The CTS to DE assertion delay (T1) assumes the transmit
data register has been loaded with data prior to CTS assertion.
Table 142. UART Timing With CTS
Parameter
UART
T
T
T
bit 7
1
2
3
parity
and
Abbreviation
CTS Fall to DE output delay
DE assertion to TXD falling edge (start bit) delay ± 5
End of Stop Bit(s) to DE deassertion delay
Table 142
stop
Figure 37. UART Timing With CTS
end of
stop bit(s)
T3
provide timing information for UART pins for the case where
T1
Z8 Encore! XP
T2
Minimum
2 * XIN
period
± 5
Product Specification
start
Electrical Characteristics
Delay (ns)
®
F082A Series
2 * XIN period
+ 1 bit time
bit 0
Maximum
bit 1
238