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CTS9513A Datasheet(PDF) 2 Page - List of Unclassifed Manufacturers |
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CTS9513A Datasheet(HTML) 2 Page - List of Unclassifed Manufacturers |
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2 / 28 page  Celeritous Technical Services Corp 800.687.6510 / 806.793.0708 3308 34th St FAX 806.793.0710 Lubbock, Texas 79410 http://www.celeritous.com SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE Copyright 2000 Celeritous Technical Services Corp 2 Rev E Tuesday, September 25, CTS9513-2 5 Chan 16 bit 20MHz Counter/Timer DEVICE DESCRIPTION The CTS9513 is a custom, high speed ASIC implementation of the AMD AM9513 System Timing Controller. The ‘9513 has long been the most versatile counter/timer peripheral device, featuring far more flexibility than competing timing devices such as the Intel 8253/8254, Motorola 6840 or others. A large installed base of devices and software drivers already exists. The principal limitation of the AM9513 was its maximum frequency limitation of 7 Mhz imposed by its late 1970’s NMOS LSI design. The CTS9513 shatters this barrier with a 20 MHz maximum clock speed and much lower power consumption due to its CMOS construction. The CTS9513 Counter/Timer is capable of a wide variety of applications including, but not limited to: • Event Counting • Event Sequencing • Programmable pulse generation • Programmable delay generation • Frequency counting • Frequency synthesis • Real Time Clock • Alarm Clock Functions • Watchdog Timing • Retriggerable Pulse Generation • Non-Retriggerable Pulse Generation • Waveform Analysis • Interrupt Generation • Pulse burst generation The user has control over key features such as: • Output Polarities • Output Impedance • Input Trigger, Edge Polarities • Hardware gating/triggering • Software gating/triggering • Count Up/Down • BCD/Binary Counting • Real time count register read • Internal counter concatenation (up to 80 bits) • Programmable frequency source selection • Programmable internal clock pre-scaling FEATURES BACKWARDS COMPATIBLE The CTS9513 maintains backwards compatibility with most AM9513 features, allowing continued use of your existing software drivers. Data may be transferred in 8 or 16 bit increments. All internal data paths in the CTS9513 are 16 bit. All ‘9513 commands registers and modes are supported. PACKAGING Figure 2 illustrates the DIP-40 Package pinout of the device which conforms to the original AM9513 pinouts. Table 2 summarizes the pinouts of the PLCC-44 package illustrated in Figure 3 which conform to the original AM9513 PLCC pinouts. SIGNALS The following signal names and description conform to the original AM9513 device. VCC +5 Volt Power Supply VSS Ground X1 The CTS9513 does not provide an internal crystal oscillator and must be driven from an external source. X1 should be left open X2 X2 should be connected to an external TTL source and pulled up to VCC FOUT (Frequency Divider Outputs) The FOUT line is generated by internally programmable counters. The clock source for these counters may be any of the external GATE or SOURCE inputs as well as any of the internally prescaled clock outputs. SOURCE1-5 (Count Source Inputs) Source inputs 1-5 provide external clock source lines which may be routed to any of the internal counters or the FOUT divider. The active count edge for the source is programmed at the counter. Symbol Description Min Max Units V DD DC Supply Voltage -0.3 7 Volts V IN Input Voltage at Any Pin -0.3 VDD+.3 Volts T OP Operating Temperature AxI -40 85 o C T ST Storage Temperature -55 150 o C Table 1. Absolute Maximum Ratings |
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