Z8F042AHH020EG Zilog, Z8F042AHH020EG Datasheet - Page 219

• Manufacturer Part Number: Z8F042AHH020EG
• Description: IC ENCORE XP MCU FLASH 4K 20SSOP
• Manufacturer: Zilog
• Series: Encore!® XP®r

Specifications of Z8F042AHH020EG

• 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: Lead free / RoHS Compliant
• Other names: 269-4156; Z8F042AHH020EG

PS022517-0508
(Output)
(Input)
(Output)
CTS
DE
TXD
Table 111. UART Timing with CTS
Parameter Abbreviation
T
T
T
UART Timing
1
2
3
Figure 54
Clear To Send input pin (CTS) is used for flow control. In this example, it is assumed that
the Driver Enable polarity has been configured to be Active Low and is represented here
by DE. The CTS to DE assertion delay (T1) assumes the UART Transmit Data Register
has been loaded with data prior to CTS assertion.
T
CTS Fall to DE Assertion Delay
DE Assertion to TXD Falling Edge (Start)
Delay
End of Stop Bit(s) to DE Deassertion Delay
1
and
Table 111
T
2
Figure 54. UART Timing with CTS
Start
provide timing information for UART pins for the case where the
Bit 0
Bit 1
2 * XIN period 2 * XIN period
1 * XIN period 2 * XIN period
1 Bit period
Minimum
Z8 Encore! XP
Bit 7
Delay (ns)
Parity
Product Specification
1 * XIN period
Electrical Characteristics
+ 1 Bit period
1 Bit period +
Maximum
Stop
Stop Bit(s)
®
End of
F0822 Series
T
3
206