ez80f91 ZiLOG Semiconductor, ez80f91 Datasheet - Page 8
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ez80f91
Manufacturer Part Number
ez80f91
Description
Ez80 Acclaimplus!? Connectivity Assp Ez80f91 Assp
Manufacturer
ZiLOG Semiconductor
Datasheet
1.EZ80F91.pdf
(387 pages)
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PS027001-0707
On-Chip Oscillators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 339
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 343
Packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 361
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 363
Customer Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 379
EMAC Operation in HALT Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301
EMAC Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301
EMAC Interpacket Gap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309
Primary Crystal Oscillator Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 339
32 kHz Real-Time Clock Crystal Oscillator Operation . . . . . . . . . . . . . . . . . . . 341
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 343
DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 344
POR and VBO Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 345
Flash Memory Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 345
Current Consumption Under Various Operating Conditions . . . . . . . . . . . . . . . 345
AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348
External Memory Read Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 350
External Memory Write Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 351
External I/O Read Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 353
External I/O Write Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 354
Wait State Timing for Read Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 356
Wait State Timing for Write Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 357
General Purpose Input/Output Port Input Sample Timing . . . . . . . . . . . . . . . . . 358
General Purpose I/O Port Output Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 358
External Bus Acknowledge Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 359
Part Number Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 363
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 365
Product Specification
eZ80F91 ASSP
Table of Contents
ix
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