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Z84C9012VSC

Part # Z84C9012VSC
Description IC 12MHZ Z80 KIO 84-PLCC
Category IC
Availability In Stock
Qty 1
Qty Price
1 + $7.76937
Manufacturer Available Qty
ZILOG
Date Code: 9303
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Technical Document


DISCLAIMER: The information provided herein is solely for informational purposes. Customers must be aware of the suitability of this product for their application, and consider that variable factors such as Manufacturer, Product Category, Date Codes, Pictures and Descriptions may differ from available inventory.

Z84C90
KIO Serial/Parallel Counter Timer
PS011802-0902
iv
List of Figures
Figure 1. KIO Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Figure 2. Z84C90 84-Pin PLCC Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Figure 3. 100-Pin LQFP Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 4. Test Load Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 5. PIO Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 6. PIA Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 7. CTC Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 8. Crystal Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 9. SIO Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 10. I/O Read/Write Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 11. Serial I/O Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 12. Counter/Timer Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 13. Port I/O Read/Write Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 14. Interrupt Acknowledge Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 15. Op Code Fetch Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Z84C90
KIO Serial/Parallel Counter Timer
PS011802-0902
v
List of Tables
Table 1. Z84C90 KIO Serial/Parallel/Counter/TimerPackages . . . . . . . . . . . . . . . . . . 1
Table 2. KIO Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 3. DC Characteristics of the Z84C90 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Table 4. Capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Table 5. AC Characteristics of the Z84C90 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Table 6. Daisy Chain Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Z84C90
KIO Serial/Parallel Counter Timer
PS011802-0902
1
Z84C90
KIO Serial/Parallel Counter/Timer
Product Specification
Features
General Description
ZiLOG’s Z84C90 Serial/Parallel/Counter/Timer KIO is a multi-channel, multipurpose I/O
device designed to provide the end-user with a cost-effective and powerful solution to
meet peripheral needs. The Z84C90 combines the features of one Z84C30 CTC, one
Z84C20 PIO, a Z84C4x SIO, a 8-bit, bit-programmable I/O port, and a crystal-oscillator
into a single package (84-pin PLCC or 100-pin LQFP). Using fifteen internal registers for
data and programming information, the KIO can easily be configured to any given system
environment. Although the optimum performance is obtained with a Z84C00 CPU, the
KIO can just as easily be used with any other CPU.
Table 1. Z84C90 KIO Serial/Parallel/Counter/Timer Packages
Part Number Package Frequency (MHz)
Z84C9008ASC 100-pin LQFP 8
Z84C9010ASC 100-pin LQFP 10
Z84C9008VEC 84-pin PLCC 8
Z84C9008VSC 84-pin PLCC 8
Z84C9010VSC 84-pin PLCC 10
Z84C9012VSC 84-pin PLCC 12
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