Measurement-computing BTH-1208LS-OEM Manual do Utilizador descarregar pdf (Página 23)

BTH-1208LS-OEM User's Guide Specifications

Counter

Table 14. Counter specifications

Parameter Specification

Pin name CTR

Counter type Event counter

Number of channels 1

Input type Schmitt trigger, 47 kΩ pull-down to ground, rising edge triggered

Input source CTR screw terminal

Resolution 32 bits

Maximum input frequency 1 MHz

High pulse width 500 ns min

Low pulse width 500 ns min

Schmitt trigger hysteresis 0.76 V typ

0.4 V min

1.2 V max

Input high voltage threshold 1.74 V typ

1.3 V min

2.2 V max

Input high voltage limit 5.5 V absolute max

Input low voltage threshold 0.98 V typ

0.6 V min

1.5 V max

Input low voltage limit –0.5 V absolute min

0 V recommended min

Memory

Table 15. Memory specifications

FIFO 12K (12,288) samples

Non-volatile EEPROM 2,048 bytes (768 bytes calibration, 256 bytes user, 1,024 bytes firmware use)

Microcontroller

Table 16. Microcontroller specifications

Type High performance 16-bit RISC microcontroller

1 2 ... 18 19 20 21 22 23 24 25 26 27

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