Z8F011AQB020EC Zilog, Z8F011AQB020EC Datasheet - Page 206

• Manufacturer Part Number: Z8F011AQB020EC
• Description: IC ENCORE XP MCU FLASH 1K 8-QFN
• Manufacturer: Zilog
• Series: Encore!® XP®r

Specifications of Z8F011AQB020EC

• Core Processor: Z8
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: IrDA, UART/USART
• Peripherals: Brown-out Detect/Reset, LED, LVD, POR, PWM, WDT
• Number Of I /o: 6
• Program Memory Size: 1KB (1K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 16 x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 8-VQFN
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Data Converters: -
• Other names: 269-3644

Table 111. Transconductance Values for Low, Medium, and High Gain Operating Modes
Oscillator Operation with an External RC Network
PS022825-0908
Low Gain*
Medium Gain* 0.5 MHz–10 MHz
High Gain*
Note: *Printed circuit board layout must not add more than 4 pF of stray capacitance to either XIN or XOUT pins. if
Mode
no Oscillation occurs, reduce the values of the capacitors C1 and C2 to decrease the loading.
Figure 28. Connecting the On-Chip Oscillator to an External RC Network
Figure 28
resistor-capacitor (RC) network.
An external resistance value of 45 kΩ is recommended for oscillator operation with an
external RC network. The minimum resistance value to ensure operation is 40 kΩ. The
typical oscillator frequency can be estimated from the values of the resistor (R in kΩ) and
capacitor (C in pF) elements using the following equation:
32 kHz–1 MHz
8 MHz–20 MHz
Frequency Range
Oscillator Frequency (kHz)
Crystal
displays a recommended configuration for connection with an external
Low Power/Frequency Applications
Medium Power/Frequency Applications 0.84
High Power/Frequency Applications
VDD
R
C
=
------------------------------------------------------ -
(
0.4
Function
X
×
IN
R
×
1
×10
C
)
6
+
(
4
Z8 Encore! XP
×
C
)
0.02
1.1
Product Specification
Transconductance
Use this range for
calculations
®
(mA/V)
0.04
1.7
2.3
F082A Series
Crystal Oscillator
0.09
3.1
4.2
195