首頁 邏輯元件和電壓轉換 電壓轉換器及電平移位器 電壓轉換器
首頁
邏輯元件和電壓轉換
電壓轉換器及電平移位器
電壓轉換器

SN74ACT1284

現行

具有 3 態輸出的 7 位元匯流排介面

立即訂購
產品規格表

SN74ACT1284

現行
產品規格表 立即訂購

產品詳細資料

Bits (#) 7 Data rate (max) (Mbps) 12 Topology Push-Pull Vin (min) (V) 4.7 Vin (max) (V) 5.5 Applications IEEE1284 Features Output enable, Partial power down (Ioff), Single supply Technology family ACT Supply current (max) (mA) 1.5 Rating Catalog Operating temperature range (°C) 0 to 70
Bits (#) 7 Data rate (max) (Mbps) 12 Topology Push-Pull Vin (min) (V) 4.7 Vin (max) (V) 5.5 Applications IEEE1284 Features Output enable, Partial power down (Ioff), Single supply Technology family ACT Supply current (max) (mA) 1.5 Rating Catalog Operating temperature range (°C) 0 to 70
SOIC (DW) 20 131.84 mm² 12.8 x 10.3 SOP (NS) 20 98.28 mm² 12.6 x 7.8 SSOP (DB) 20 56.16 mm² 7.2 x 7.8 TSSOP (PW) 20 41.6 mm² 6.5 x 6.4
  • 4.5-V to 5.5-V VCC Operation
  • Inputs Accept Voltages to 5.5 V
  • Max tpd of 20 ns at 5 V
  • 3-State Outputs Directly Drive Bus Lines
  • Flow-Through Architecture Optimizes PCB Layout
  • Center-Pin VCC and GND Configurations Minimize High-Speed Switching Noise
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)
  • Designed for the IEEE 1284-I (Level-1 Type) and IEEE 1284-II (Level-2 Type) Electrical Specifications
  • 4.5-V to 5.5-V VCC Operation
  • Inputs Accept Voltages to 5.5 V
  • Max tpd of 20 ns at 5 V
  • 3-State Outputs Directly Drive Bus Lines
  • Flow-Through Architecture Optimizes PCB Layout
  • Center-Pin VCC and GND Configurations Minimize High-Speed Switching Noise
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)
  • Designed for the IEEE 1284-I (Level-1 Type) and IEEE 1284-II (Level-2 Type) Electrical Specifications

The ’ACT1284 devices are designed for asynchronous two-way communication between data buses. The control function minimizes external timing requirements.

The devices allow data transmission in either the A-to-B or the B-to-A direction for bits 1, 2, 3, and 4, depending on the logic level at the direction-control (DIR) input. Bits 5, 6, and 7, however, always transmit in the A-to-B direction.

The output drive for each mode is determined by the high-drive (HD) control pin. When HD is high, the high drive is delivered by the totem-pole configuration, and when HD is low, the outputs are open drain. This meets the drive requirements as specified in the IEEE 1284-I (level-1 type) and the IEEE 1284-II (level-2 type) parallel peripheral-interface specification.

The ’ACT1284 devices are designed for asynchronous two-way communication between data buses. The control function minimizes external timing requirements.

The devices allow data transmission in either the A-to-B or the B-to-A direction for bits 1, 2, 3, and 4, depending on the logic level at the direction-control (DIR) input. Bits 5, 6, and 7, however, always transmit in the A-to-B direction.

The output drive for each mode is determined by the high-drive (HD) control pin. When HD is high, the high drive is delivered by the totem-pole configuration, and when HD is low, the outputs are open drain. This meets the drive requirements as specified in the IEEE 1284-I (level-1 type) and the IEEE 1284-II (level-2 type) parallel peripheral-interface specification.
filter 尋找其它 電壓轉換器
下載

您可能會感興趣的類似產品

open-in-new 比較替代產品
功能與所比較的裝置相似
TXS0108E 現行 適用於開漏和推拉應用的八位元雙向電壓位準移位器 Higher voltage range with open drain output

技術文件

star =TI 所選的此產品重要文件
找不到結果。請清除您的搜尋條件，然後再試一次。
檢視所有 1
類型 標題 日期
* Data sheet SN54ACT1284, SN74ACT1284 datasheet (Rev. D) 2003年 10月 23日

訂購與品質

內含資訊：
  • RoHS
  • REACH
  • 產品標記
  • 鉛塗層/球物料
  • MSL 等級/回焊峰值
  • MTBF/FIT 估算值
  • 材料內容
  • 認證摘要
  • 進行中持續性的可靠性監測
內含資訊：
  • 晶圓廠位置
  • 組裝地點

支援與培訓

內含 TI 工程師技術支援的 TI E2E™ 論壇

以英文檢視所有論壇主題

內容係由 TI 和社群貢獻者依「現狀」提供，且不構成 TI 規範。檢視使用條款。

若有關於品質、封裝或訂購 TI 產品的問題，請參閱 TI 支援。​​​​​​​​​​​​​​